100% Polyester one piece unisex Team Winter tri suit. Fully sublimated with Team Winter and sponsor logos. Back Zipper. Tri padding for cycling comfort. Silicone band on thigh cuffs. Sizing is unisex boys and girls. Size 6 fits under 40# child, Size 8 fits 40-55# child, Size 10 fits 55-75# child, Size 12 fits 75-90# child or adult, See adult small for next size up. Any questions on sizing, contact us at info@teamwinter.org