With yarn-dyed plaid fabric and cutting-edge technology built into the shoulder straps and back panel, the cool JanSport Odyssey 2.0 daypack will have your back basking in breezy comfort. Biovent shoulder straps and back panel combine comfort and performance with extremely light, molded foam that conforms to your body and help evenly distribute the load. Highly breathable back panel protects your body from the packs contents and features circulation grooves and recessed channels to increase cooling airflow. Angled vent holes in the shoulder straps provide maximum ventilation to keep shoulders cool. Built-in framesheet and aluminum stay provide reliable load support even with a full pack. Padded hipbelt can be tucked away when not needed. Hydration sleeve holds a reservoir of your choice reservoir sold separately. Dual main compartments allow you to separate and organize items. Drawbridge pocket, large front pocket and stash pocket give you choices for optimal packing. V-loft security pocket holds your valuable items. 2 side mesh pockets expand to fit 1 qt. water bottles sold separately. Compression straps allow you to pull the load close to your back for improved balance. Daisy chain and ice axe loop provide options for lashing on additional gear.