Especial Cuatro Cycling Laptop Backpack

Style # 403-3-2001

Our most hard core biker backpack, designed to ride like you give a damn

$ 119 $ 239

Lifetime Warranty

Rated 4.55 out of 5 stars
of respondents would recommend this to a friend

Selected Color Black - Cordura Nylon

  • Black - Cordura Nylon
Photo to the left might not match your selected color. See all Colors
  • OS
Device Fit Guide




External Dimensions

Size Width Top Width Bottom Width Height Depth Weight Volume Handle Drop
in cm in cm in cm in cm in cm lb kg cu in L in cm
OS 0.0 0.0 15.7 40.0 14.6 37.0 20.9 53.0 8.7 22.0 4.0 1.8 3,051 50.0 0.0 0.0

Will Your Laptop Fit?

View Device Fit Guide

How to Calculate True Dimensions

  • 1 - Measure your True Width: true width = Width + Depth
  • 2 - Measure your True Height: true height = Height + Depth
  • 3 - Compare your numbers to our numbers and voila! Your laptop has found a new home
Size Width True Width Height True Height Depth Will Your Laptop Fit?
in cm in cm in cm
OS 14.6 37.0 14.6 37.0 0.0 0.0 Yes. Your device will fit. No. Your device will not fit.



Lifetime Warranty


We've Got You Covered

Timbuk2's Lifetime Warranty

Timbuk2 products have a lifetime warranty; we stand behind the legendary quality and craftsmanship of all our products. Our warranty is valid only when the Timbuk2 product is purchased through Timbuk2 directly (via or one of our brick-and-mortar retail stores) or through an Authorized Reseller.

We also embrace the wild, twisty ways of life. If there is a defect in the materials or workmanship we will repair  the bag at our discretion. Damages not covered are those resulting from abuse, normal wear and tear, accidential damage, and cosmetic damages that do not affect the functionality of the bag (such as scratches or stained fabrics). Any damage to, loss of the contents of a bag, loss of use, loss of time, or similar expenses are not covered. The lifetime warranty also does not include our apparel products, such as Timbuk2 t-shirts and hoodies.

Your Timbuk2 bag is sewn by hand and might contain some slight imperfections. Like Daniel Craig or Marilyn Monroe, the slight imperfections are what add character to an already awesome product.

Warranty & Repair FAQ

What is covered by the warranty?

 Manufacturing defects in materials and workmanship are covered, notwithstanding age. If there is a defect in the materials or workmanship we will repair the bag at our discretion. 
*If your product arrived defective from please email Customer Service and we'll move mountains to right your wrong.

What is not covered by the warranty?

Damages not covered are those resulting from abuse, normal wear and tear, cosmetic issues that do not affect the functionality of the bag, and accidental damage. Any damage to or loss of contents of a bag, loss of use, loss of time, or similar expenses are not covered.  Unless a product is designed and stated to be machine washable, washing bags in washing machines can result in damage not covered by our warranty.

Wear and tear is damage that naturally and inevitably occurs as a result of normal use. Regardless of how carefully you use, or how well you care for your bag, it will eventually begin to show age and wear. Usual wear and tear not covered by the lifetime warranty includes changes in color, abrasions, and general breakdown of materials over time.  Some examples of common wear and tear include color fading from sun exposure, worn elastic, and fabric wear, especially in high wear areas such as corners, reflective binding, worn velcro, and worn shoulder or back padding. Some examples of accidential damage are rips or cuts in fabric, animals chewing or clawing on our products, as well as damage arising from airline abuse such as bent or dented luggage handles or damaged/cracked wheels & bottomplates.

What products aren’t covered by your fabulous warranty?

Any headwear, apparel or footwear. Third party attachments and or devices like the Joey power packs or NiteIze blinky lights, or Blue bottle kit accessories like scales, grinders, or cups. Any other third party accessories sold by Timbuk2 but not bearing the Timbuk2 brand.  The items are generally warrantied by their respective manufacturers.

Need Replacement Parts?

We also offer replacement parts for many of those broken and missing reflectors, buckles and straps. You can find them here: Timbuk2 Replacement Parts

If you are unsure how to install your part, check out some of the part replacement guides we’ve created: Timbuk2 Part Replacement Guides

Don’t see your part on the site?  Contact Us and we will do our best to help you out.


Warranty & Repair Process

North America Warranty or Repair Claim Details

Step 1 - Please select the appropriate link and check out to start a repair claim:

     Please keep in mind that the repair fee payment is held as a pending authorization only - and will never be charged unless the damage or nature of the repair request is not covered under warranty and the bag can be repaired.

After checking out, you will receive an email with instructions and a form to print out. A repair number will be generated and will need to be included with the bag when you send it in for repairs. 

Step 2 - Send us the bag with the Repair number

Please send the bag to the address provided in the repair details email. Be sure to write your repair number on the outside of your package. We recommend using the least expensive shipping method that will provide you with a tracking number and insurance. Timbuk2 is not responsible for parcels lost in transit. Your repair fee covers the return shipping in the lower 48 United States.

  • Package up your bag, include a copy of the repair form with a description of the concern(s).
  • Write the repair number on the outside of the package  (W-XXXXXXX).

Please keep in mind that California State law requires that all items accepted for repair be freshly cleaned. You wouldn't want to dig through someone else's nasty, so help us provide a clean and safe environment for our employees. If we determine that your bag needs to be cleaned, we will return it to you without preforming the repair(s). We do not offer cleaning services. For more information on how to properly clean and maintain your awesome Timbuk2 bag, please see Bag Care.

Step 3 - Evaluation / Repair 

Once your item arrives, our repair team will be evaluate your claim within 7-10 business days and determine if the issues can be repaired and what is covered under the Lifetime Warranty.  Because pictures don't tell the whole story, and we want to give your claim the best possible evaluation, warranty assessemnts are only preformed in person once our repair team receives your bag.  

  •      If the claim issues are covered by the lifetime warranty, we will waive the authorization fee and repair your product. 
  •      If any repairable claim issues are not covered by the lifetime warranty, we will charge the authorization fee and repair your product.

Not sure your bag can be repaired, please contact us.

Outside of North America Warranty Repair?

If you purchased your bag outside of the USA and Canada, please contact us for local representatives that will offer you warranty services. Please provide your proof of purchase and the location for the bag when submitting your claim.  Should your bag require service in the USA, shipping to and from the USA for your Timbuk2 item are your responsibility.


Dual side stretch pockets fit water bottles or U-lock


Backpack straps made from high density foam and mesh for venting

Ventilated back panel to give your back breathing room

Clever Extras

Magnetic buckles on the flap for secure one-handed accessibility

Oversized flap and buckles allow for everything, even the kitchen sink

Reflective hits


Bullet-proof design with seam-taped waterproof liner and integrated reflective panels

Durable Cordura nylon fabric



What's this all about?

The Especial Cuatro Backpack just got did-up, with a new, intuitive diamond shaped front flap for sleek, versatile style. This pack is legit. Ever thought about carrying a bike while riding a bike? The secondary strap on this pro-level cycling laptop backpack can do all that and more, with room to spare. And while your testing the limits of your pack mule capabilities, your bag's ventilated flexible back cooling panel will keep you from getting overheated. Now that's teamwork.

Reviews (0)


Review Snapshot

by PowerReviews

Rated 4.55 out of 5 stars
11 ReviewsWrite a Review
of respondents would recommend this to a friend

Ratings Distribution

  • 5 Stars


  • 4 Stars


  • 3 Stars


  • 2 Stars


  • 1 Star



9Comfortable Strap
7Good Protection


2Not Enough Pockets
Best Uses
3Heavy Duty Protection
1Light Protection
Describe Yourself
3High-End Shopper
2Bargain Hunter
Primary use
Was this a gift?

Reviewed by 11 customers

Rated 5 out of 5 stars

Very large. Very excellent.

This is an awesome bag. Be forewarned, it is huge, but in a great way if that is what you want. I am 6'5", it works very well for me but might be ungainly on someone of smaller stature. I use it to haul a 17" full keyboard laptop, a large knife roll, and a tool roll. The pockets are limited, but sufficient for my purposes. 1 main with a tiny passport pocket inside. Two long external pockets, with very useful zippers down their length. A document pocket and wallet pocket on the back panel. The main compartment expands to fit almost double, but stays slim profile, albeit with a very large footprint. I use canvas tool pouches to help organize things in it along with my rolls. Their are 2 mesh pockets that work great for water bottles, even a large nalgene will fit. Straps are super comfortable. The price is very high but the quality is exceptional, if you are looking for a comfy bag to haul massive amounts of stuff, this beyond a doubt the one for you. I think it will make a great travel bag for my family as well because it will hold stuff for a couple and children easily.

Bottom Line Yes, I would recommend to a friend

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Rated 5 out of 5 stars

Perfect for Seattle Bike Commuting

I've had/used this bag for roughly a year now & it's been close to perfect. It holds everything I need for my daily bike commute & takes a pounding in the Seattle Winters. Lots of great pockets, but my "favorite" are the 2 at the rear of the bag where I place my cell phone in one & documents/magazines in the other. Tons is interior space too. My *only* complaint is that wearing the bag high creates a kind of blind spot over my shoulder that took some time getting used to (i.e. looking for traffic to the rear & the view is blocked). I now have to look down & behind rather than up & behind - took some time getting used to, but definitely not a deal breaker (I guess I could get a mirror on my dropdowns, but, eh...). Anyhow, great bag. I would definitely buy again if the need arose.

Bottom Line Yes, I would recommend to a friend

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Rated 5 out of 5 stars

This backpack holds my life in its hands and I adore it

I had the same backpack for 16 years (all of elementary school, middle school, high school, and college), and it was absolutely falling apart when I graduated from college. Going to grad school, I knew I'd need a new bag. I spent about 4 months hunting online and in brick-and-mortar stores for a backpack that was going to meet my needs: I'm a grad student, athlete, and bike commuter in one of the rainiest cities in the world. My daily bike commute is about 30 minutes each way, and I'm regularly cycling with my 17" laptop, several notebooks and library books, my gym clothes (including a change of shoes), and my lunch. And then on my way home at night, I can stop by the store for a few groceries. This bag is seriously enormous. I've used it for a three-day weekend away with room to spare. I also use it to buy a weeks' worth of groceries - for this, the side zippers that expand the main compartment are really nice. The backpack doesn't have many pockets, but I actually like that I'm not locked into pockets that don't work for me. I have some pencil cases that I always keep in the bag to hold pens/pencils, bike tools, and other essentials. The two side-zip front pockets are really nice for easy access to my wallet, shopping bag, etc., without having to open the main flap. I've had the bag for about 6 months, and the lower back pads are starting to wear a bit, which is troubling, but I don't foresee it being an issue. To be honest, it's prohibitively expensive (like most Timbuk2 products), but I justified it by recognizing that I'll probably use it for a decade or more. Cycling through driving rain and sleet, my stuff has never gotten a drop of water on it. This bag takes a licking and keeps on ticking.

Bottom Line Yes, I would recommend to a friend

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Rated 5 out of 5 stars

Really like

This bag is great. just the right amount of pockets and features and not too many. it is well padded for my computer and I like that it's waterproof. I wish it were a little bit lighter.

Rated 4 out of 5 stars

Nice big pack

I use this bag daily. It has tons of space. It feels rugged. My only down-checks are the lack of pockets. I don't drive so this is my trunk, office, closet, etc when I am not at home. Being able to -eh- keep my peanut butter out of my chocolate would be very nice. For example, the front pouch has a velcro strip that splits the area into two long, vertical silos. Each has a "napoleon" zipper but before I realized the velcro divider was there I thought the only possible use for that area was maybe transporting wine bottles. I now keep a packable pair of rain pants and jacket in there -- and they take up the whole space with the velcro out of the way. The main pack space is huge and holds what I need but the little things all fall to the bottom and are impossible to get at easily without mostly unpacking everything else. I now keep an old fanny pack in there for the small stuff so that I just have to find and fish that out. Lastly, if I could change one thing, other than adding more pockets, it would be to sculpt the stiff back panel along the long sides. A slight hourglass shape would leave room for elbows that poke out back there when holding the shoulder straps, as you do.

Bottom Line Yes, I would recommend to a friend

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Rated 5 out of 5 stars

Hands down favorite back pack

These bags were given out at my company a year ago. I use this bag every day filled with laptop, dog toys and text books. I've taken this bag on flights several times and use it when I go cycling. This is hands down the best back pack I've used. The laptop section isn't fully separate from the rest of the bag so if you spill something your laptop will still get wet. But I've taken this bag through snow, rain, and hail and the inside always stays dry. My dog got to it once and my 3 and 1 year old nephews have tried their best to destroy it but it's still in great condition. I can't recommend this bag enough.

Bottom Line Yes, I would recommend to a friend

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Rated 5 out of 5 stars

3rd bag purchased. Absolutely love Timbuk2's gear.

Killer products. My 3rd bag. Still have all 3. Timbuk2 stands by their gear. One bag the buckles broke, they repaired them without question. Carrying tons of books for school. Great capacity.

Bottom Line Yes, I would recommend to a friend

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Rated 1 out of 5 stars

Received a defective product

It's been 20 days since I emailed customer service to inform them of a defective bag that I received on 18 Dec. Submitted twice but still have yet to hear from Timbuk 2 except that I kept receiving all the marketing mails. There was a cut on the bag and it is clearly not due to shipment as the plastic wraps did not show any sign of cut on it. Since it was my first purchase, I'm quite disappointed as it was meant for Christmas present and the quality check was not ensured. The bag is now sitting in one corner while I wait for one of the staff to advise me on the next course of action. Hope that I will get some attention by posting it here.

Received a defective product

Bottom Line No, I would not recommend to a friend

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Rated 5 out of 5 stars

Nice bag for travel.

This pack has a lot of room, I bought it for travel since its dimensions are at the top end of measurements for carry-on bags and I don't like rolling luggage. It won't stick out as totally high end, in the event that you want to be inconspicuous. Tactical black. It's got one really large main pocket, and a couple of smaller ones for documents and whatnot. There are water bottle holders on either side, i plan to use one to hold a small travel tripod. There's also a bottle opener on one of the straps, which is a rad little detail. Totally satisfied with my purchase, hoping it'll hold up to wear and tear.

Bottom Line Yes, I would recommend to a friend

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Rated 5 out of 5 stars

Finally...The Perfect Backpack!!

I travel for business extensively and average over 175 nights a year traveling. I have looked for years for a durable, stylish, weatherproof backpack with plenty of space and storage. I had pretty much given up all hope until I found the Especial Cuatro Backpack. It is even larger than I expected, very comfortable with the back panel padding when carrying a heavy load, contours to your spine when you bend and move, has plenty of storage inside main compartment as well as two front pockets, the magnetized strap clips are very user friendly and work wonderfully, and the blue interior allows you to see down inside the pack to the bottom when you are looking for an item. I am a very harsh, tough critic and have bought and returned many packs over the years. I am sold on this pack and oils my be happier with the purchase. I recommend this to anyone looking for a superior lack with plenty of storage, regardless of a traveler, commuter, student, or business professional. You won't be disappointed!

Bottom Line Yes, I would recommend to a friend

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