NCAA Louisville Cardinals MENS Plaid Sleepwear / Pajama Shorts 40% polyester 100% authentic NCAA merchandise, satisfaction guaranteed. EXCELLENT FABRIC: 60% cotton, 40% polyester; High quality machine washable material. Team logo embroidered on left leg for a sporty look. Fabric covered elastic waistband for added comfort. Relaxed styling provides a comfortable and casual fit; Functional button fly for convenience.