A lattice-like overlay of Dura leather strapping supports and protects while enhancing the open-window venting of the waterproof, breathable mesh upper that is a Merrell mark. Full bumper protection at the toe and around the heel. Proven VibramĀ® Multi-Sport sole with TC5+ rubber compound for grip and durability. Waterproof membrane treated with AegisĀ® antimicrobial solution provides an impermeable but breathable barrier. OrtholiteĀ® anatomical footbed. Merrell air cushion in the heel absorbs shock and adds stability. Weight: 1 lb 8 ozs.