Exterior is high quality aircraft upholstery leather from Townsend Leather. Skull & rat are carved by hand in the leather. The interior is made from vintage military material: ripstop polyester rubberized canvas; extremely durable and waterproof material (see the destruction video). Vintage NOS YKK brass zipper. Everything is sewn with bonded nylon Tex135 thread. Dimensions: 6 x 4.5inches. Heavy duty and ready to hold your EDCs, cards, cash, pens etc…