Nike Essential U-Back One-Piece Black XS - One of the best go-to suits for aquatic fitness, the Nike Essentials U-Back One Piece packs a punch with features. Regular straps work for a wide range of sizes and activities, providing medium support. The standard leg height and moderate bottom coverage ensure an ideal fit with great coverage without sacrificing your freedom of motion. Removable soft cups and cup stabilizer pockets offer adjustable coverage and comfort for zero distractions.