6.5oz airlume combed and ring-spun cotton/polyester fleece. Triblends are 8.2oz 50/37.5/12.5 polyester/airlume combed and ring-spun cotton/poly. Marbles are 6.5oz 85/15 airlume combed and ring-spun cotton/polyester Acid wash is 7.3oz 60/40 airlume combed and ring-spun cotton/polyester. Retail fit.