Existing modelThe ACT Trail 28SL is suited for all kinds of outdoor pursuits where comfort and accessibility are key. The ACT Trail packs are made with a flexible Delrin® construction Aircontact back system suiting any sport and any back length. No more rummaging around for your gear the two-way zip on the front allows direct access to the entire pack even when the lid is closed. The ACT Trail 28SL features Deuters SL fit with a shorter back length, narrower shoulder straps with shaped fit and softer hip belt padding. Both packs come with built-in rain covers, exterior mesh stuff pocket and bungee cord and zippered side pocket.