I pre-washed these and applied name stickers, but I ended up not wearing them and the training session was over. There are traces of the name stickers on the tag, but I don't see any stains. The material is thick, though the exact number of layers is unknown. This is a red and white pants set featuring a Lightning McQueen design. - Design: Lightning McQueen print - Material: 80% polyester, 20% cotton - Size: Unknown (not indicated on the tag) - Color: Red and white combination Thank you for looking.