Tres review I've had my Especial Tres for a couple years now and it continually proves to be one of the best purchases I've ever made. I commute daily by bike and run 95% of my errands by bike. * It's kept my stuff dry in some pretty torrential downpours (except when I forgot to zip up the side zipper all the way) * It's comfortable to ride with during my 5 to 10 mile bike commutes (although if it's really packed then watch out for the blind spots). The padding on the straps and back-panel are great. * it works great for multi-day trips (and still fit underneath the seat in front of me if I don't pack too much) * it can fit a ton of stuff for when you're out running errands: packages, groceries, Target runs. Just the other day I was at the grocery store and as I loaded up my bag with about 5 days worth of groceries the clerk said, "whoa, that bag is huge!". My only comment to potential buyers is that being such a voluminous bag means that it's physically pretty large for an everyday bag. I commute with a 15" laptop, shoes, a full change of clothes, my lunch, u-lock, spare tube and mini-pump, and I can still stop at the store and pick up a bunch of groceries. However, it's not as large as some of the big bags you see couriers riding with. The roll-top and straps cinch the top down really well and compact. I just wish they had some cinch straps near the bottom.