Perfect for a weekend in the desert or a trip to the city. The separate, internal pocket is great for wet gear, dirty laundry, shoes, or whatever it is you want to keep separate from the rest of your clothes/gear. The internal zip pockets are great for toiletries, cables, and other small items. The stash pocket on the outside is also great for items you need to access quickly. Love the backpack straps, which allow you to treat this duffel as a pack, which is ideal when using this for travel. Only used once, and wasn't as stoked on the black marks all over the bag after a single flight, but they seemed to rub off fairly easily for the most part. Bought the 60L, but could easily get away with the 40L for shorter weekend trips. Prefer the 60L for camping or trips that require you to bring more gear.