Dynomighty Men&#39;s Mighty Wallet - Super Thin Lightweight Tyvek Billfold 100% High Density Polyethylene Hand Wash 4" high 3.25" wide The mighty wallet is tear-resistant, water-resistant, expandable and recyclable Innovative design has no stitching and instantly adjusts to a custom fit Made from a single folded sheet of a strong micro fiber material (Tyvek) Super thin wallet provides a slim profile, less bulk and freedom of movement Dimensions (open) 8 x 3 1/4 x 1/8-inches