Made of TPU laminated, 420 D Nylon with fully seam sealed construction, these rugged daypacks are the obvious choice for any adventure into wet, rainy or snowy terrain. They are designed for water sports-but you don\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'t have to be on a big river to appreciate all the features these packs offer. The sleek design also works well for climbing, canyoneering, mountain biking, commuting, hiking and travel.