BUMPSUIT The Support Waist Trainer in Black. - size L (also in M, S, XS) BUMPSUIT The Support Waist Trainer in Black. - size L (also in M, S, XS) 92% nylon 8% spandex. Made in China. Hand wash. Boned design. Seamless 4 way stretch fabric. This breathable compression band is design to inspire strength and confidence for Postpartum Recovery or Waist Training.. BUMR-WI10. TRAIN. Shop the latest in fashion from BUMPSUIT