Sizes based approximately on age range. Recommend to size down. Ex: if a child is 4, size 2 would fit best. Made from recycled plastic bottles. Designed on Guam by local runners.RNG Singlet - Yellow - Kid's$25.00PriceSize*SelectQuantity*Out of StockNotify When AvailableDETAILS Re-Run DRIKWIK moisture-wicking fabric made from recycled plastic bottles Reflective logos to increase visibility in low-light situations Detailed graphic print that resonates the Hafa Adai spirit 5-panel design 100% Polyester body