A4 Adult Reversible Practice Jersey Mesh Pinnie (Pack of 5 or 12) Jerseys comes in a convenient pack of either 5 or 12 - you choose. Also included is a complimentary Kamal Ohava drawstring backpack. Ultra tight knit resists snagging. 100% moisture wicking polyester mesh that is odor and stain resistant. These are ADULT sizes - please refer to product description for exact sizing.