LNJLVI Boys' Youth Long Sleeve Athletic Shirts Compression Base Layer Underwear Running Baseball Soccer T-Shirts(Black,5);

High Performance Fabric - Keeps you warm in cold temperatures, & keeps you
cool in hotter temperatures.Proven Compression Technology - Promotes faster
muscle recovery & blood circulation, & minimizes injury.
Great for under clothes for winter play or as pajamas.
Keeping comfortable and warm while running in the cooler weather.

Size 5 :Height 45"-47" Weight 42lbs-46lbs
Size 7:Height 50"-52" Weight 53lbs-58lbs
Size 10:Height 54"-57" Weight 60lbs-77lbs
Size 12: Height 58"-60" Weight 79lbs-88lbs