Existing modelThe Trans Alpine 26SL and Trans Alpine 30, $129, feature Deuters patented lightweight Airstripes-System®. This special ventilation system, designed specifically for cyclists, is made of two contoured foam strips with AIR channels and is covered in highly durable, breathable mesh. The 26 SL, a womens specific pack, features a female-friendly design with a shorter back length and narrower shoulder straps. Both packs include a dividable main compartment, contoured shoulder straps, mesh hip fins with pockets, two exterior zip pockets, buckled helmet holder, and pump holder, safety blink loop, built-in rain cover, hydration capability and 3M reflectors. TransAlpine 26SL, Capacity: 1600 Cu. In. TransAlpine 30, Capacity: 1850 Cu. In.