Here's what other sites are saying:
Designed and engineered at the request of the U. S. Navy Seals, the OTB Abyss takes on wet and dry terrain in the toughest conditions. Razor siping in the grippy, lugged sole and lots of drainage. The lugs and razor siping in the sole channel water away and greatly improve traction in wet conditions. Ballistic mesh in the upper and drain ports in the sole rapidly pass water away from your feet. The mesh and synthetic materials in the upper dry quickly for foot comfort and health. Rubber reinforcement in the toe and heel protect against the rocks, roots and other outdoor obstacles. Cushioning foam in the upper will not absorb water. The unique three part insole system lets you adjust stiffness and fit, while letting water drain through the sole ports.
- Altrec Outdoors