Gently used Mighty Wallet men's ultra thin Tyvek wallet by DYNOMIGHTY DESIGN - Batman vs. Superman LootCrate release from March 2016, 100% Tyvek. The mighty wallet is tear-resistant, water-resistant, expandable, and recyclable.

"Tyvek® is a 100% synthetic material made from high-density spun bound polyethylene fibers. Lightweight, durable and breathable, yet resistant to water, abrasion, bacterial penetration and aging, Tyvek® is an amazing material used to improve a variety of applications across multiple industries.

When the fibers in Tyvek® are spun and bonded under high heat and pressure, Tyvek® acts as a thermoplastic—returning to a high density, semi-solid state that prevents liquids from breaking the surface."