Saugatuck Endless Summer Kids T-Shirts are the best way to remember your most amazing summer ever. Extremely soft 3.8oz. Triblend 50/25/25 polyester/airlume combed and ringspun cotton/rayon, 40 singles. Coverstitched collar. Side seams. Size Small is equal to a 6-8. Medium is equal to a 10-12. Large is equal to a 14-16.