TERRAIN 365 Otter Flip-ATB Carbon Fiber Terravantium bladeTERRAIN 365 Otter Flip ATB Carbon Fiber [RUSTPROOF X EDGE HOLDING] The Terrain 365 Otter Flip ATB is a fast, flipper action, compact, framelock folder featuring our rustproof, edge holding Terravantium blade. "AT" means this folder is built for "All Terrains" and impervious to rust, and "B" is for the integrated "bolster" method of construction. Like its animal namesake, this pocket knife is equally at home in the water or on land. Available with