Navy Sweat Pants Z SERIES PANTS DEEP NAVY Navy Sweatpants for Men Walmart.com US Navy Sweatpants with Reflective Print USN Joggers, Navy Blue, Medium. Slip into cozy comfort with these Series 10 Sweatpants! Showcasing a drawstring waist, soft fleecy material, and cuffed ankles, they'll keep you comfortable and cozy. Plus, they've got the exclusive TSF Series 10 logo! Get the cutest lounge look around by pairing her with the matching singlet! FABRICATION: 60% Cotton 40% Polyester SIZING: Crystal's height is 162cm 5'3 and wears a size XS.