The ALPS Mountaineering Clear Passage Series offers abrasion-resistant mid-weight dry bags constructed of durable waterproof TPU material, and 420D nylon TPU coated bottom, with fully welded seams. The bags superior construction along with a secure roll-top closure locks out water and offers a tenacious water barrier in wet environments. An oval-shaped, flat bottom helps the bags stand up on their own and make them easy to fill. A D-Ring attachment point is included for additional gear lashing, stacking, or attachment to your water craft. The most adventurous cant go wrong with the Clear Passage Series. Offered is capacities to fit your needs: 5L, 10L, 20L, and 35L.