The Koski Felt features the same sturdy, lightweight base as the Gummi version, with a felt sole designed specifically for wading. The ripstop nylon upper withstands regular friction against rocks, riverbanks, and walking surfaces. The felt provides excellent traction on many submerged surfaces, especially when stability is a priority. This version should therefore be chosen primarily based on the terrain and local regulations regarding felt use. The shoe size should allow enough room for the wader liner to ensure comfort and support.