On Train Shorts in Black. - size XL/1X (also in L, M) On Train Shorts in Black. - size XL/1X (also in L, M) Self: 86% recycled polyester 14% elastane Pocket Lining: 100% recycled polyester. Machine wash. Pull-on styling with elastic waistband. 3-pocket styling. Lightweight ripstop fabric. ONF-MF51. 1MF10220553.