This pool-day essential is made with moisture-wicking stretch jersey fabric that offers UPF 50 protection from UV rays. Excellent UV protection: UPF 50 Size 4-4T has a 17" body length (front and back) and a 19.5" sleeve length Sleeve length is taken from the center back of the neck Signature embroidered Pony at the left hem Mock neck Long raglan sleeves Imported Material & Care Polyester, elastane Machine washable