Commando Studio Rib Racerback Bra in White. - size S/M (also in M/L) Commando Studio Rib Racerback Bra in White. - size S/M (also in M/L) 53% tencel 42% nylon 5% elastane. Made in China. Machine wash. Racerback styling. Ribbed jersey fabric. CMAN-WI293. SDR501. Through innovative design and technical fabrics, commando creates versatile, luxurious pieces that make your wardrobe work harder so that your style can be effortless. From their sleek ballet bodysuits to their best-selling leggings and tights, to the raw-cut underwear that started it all, commando is the go-to brand for seasonless staples that you can build a look around.