Louisville Cardinals Kids MTB Jersey Memorabilia.

These awesome mountain bike jerseys are meticulously constructed from 100% treated micro fiber polyester for quick-drying, moisture transfer ensuring total riding comfort. Show your colors and go team! Available in S, M, L and XL sizes. Children sizing is generally targeting the following age groups and may vary depending on the size of the child.Small - (4 - 6 years)Medium - (6 - 8 years)Large - (8 - 10 years)X-Large - (10 + years)