The Trail 28 SL is a tough, dependable hiking pack, built to Deuter's usual high standard of construction. The main compartment is accessed by a standard lid, with an extra two-way zip around the side for easy access to gear that's buried deep inside. The flexible Delrin Aircontact back system construction fits any shape of back comfortably, and the mesh hip-fins tuck neatly out of the way when not needed. Trail 28 SL Women's Rucksack