The Laughing Giraffe Unisex Infant Cotton Long Sleeve One Piece comes in many fashionable prints and beautiful solid colors. All the one pieces are made of 100% interlock knit cotton . Interlock knits are recommended over rib knits as they are more stable for screen printing, embroidery, sublimation and heat transfer printing. Washing Instructions: 1. Machine Wash Cold 2. Tumble dry low 3. Please do not bleach