This football has been tested and meets FIFA quality standards, to ensure it loses very little air pressure and can still be played with in wet conditions. With a textured TPU outer shell and PU sealing at the seams, the FIFA Basic training ball is highly resistant to water absorption. It also features 3.5mm foam backing, a PV backing layer, and a HR wound bladded for high rebound! This product is supplied deflated. Ref: UTRD3512