Sublimation (White shirts) DTF (Direct to film Color shirts) We do not use Gildan Shirts Sublimation material is 100% polyester and DTF shirt materials are Cotton tri-blends 50%polyester/25% cotton/25% Rayon or 50/50 cotton/polyester blends for their softness and comfortability. Comfort Color and Bella Canvas tees are available for custom orders for a small added fee.