Under Armour Undeniable Reversible BB Jersey - Boys' Grade School There will be no stopping you in the Under Armour Undeniable Reversible Basketball Jersey. This elite-level basketball jersey uses a Pin Dot mesh with UA's signature moisture management system to wick sweat away from your skin to the surface of the jersey where it can be easily and quickly evaporated, leaving you cool, dry and fast. 4-way stretch fabric moves with you as you work the competition. Contrasting inserts on the sides, back and shoulders provide an elite styling to this big-time performer. Never be stopped in the Under Armour Undeniable Reversible Basketball Jersey. 100% cationic polyester. Imported.