Built and inspired by our Hydronaut foul weather system, with a 30K 2-layer 100% nylon shell to keep you dry when it matters the most. The Hydro waterproof fishing bibs deliver the same level of heavy-duty durability as the original Hydronaut, but feature adjustable elastic shoulder straps for the angler who prefers a more traditional shoulder strap system. Enjoy all the other creature comforts like brushed tricot hand warmer pockets, knee high side zippers. reinforced knees, reinforced hem, 300D pliers pocket, and safety d-ring.