ventilated outer pocket for storing skates and sweaty clothes. It can hold a ton of gear, including separate helmet compartment along with smaller compartments designed for skate tools and bearings. Need a pocket for your smart phone or No problem! Luigino included a felt pocket to protect you smaller gagdets. All in all, this pack has 4 smaller pockets, a helmet compartment, a larger area for wheels, suits, or any other Luigino apparel you might have, a computer pocket (accessible from the side of the bag or the inside), ALL heavy duty zippers, heavy duty shoulder straps, and a heavy duty handle on top. It's safe to say, they've made several improvements from the previous pack.