The Ultra Wallet is a minimalist and lightweight wallet built from Challenge Sailcloth Ultra 200X, a high-performance laminate combining UHMWPE (Ultra-High-Molecular-Weight Polyethylene) and recycled polyester film. This fabric offers an exceptional strength-to-weight ratio, high abrasion resistance, and water resistance.A YKK Aquaguard zipper helps keep contents protected from moisture, while the side pull loop doubles as a carabiner attachment point for clipping to packs or gear. The design stays slim in your pocket but tough enough for daily use or travel.