Boost Level 2 - A classic must-have for your wardrobe, this lace balconette bra with microfiber cups provides a subtle lift while creating a smooth silhouette. Built-in underwire. Boning at the sides. Removable adjustable spaghetti straps can be worn classic, halter, crossback, one-strap or strapless. Three hook-eye closures in the back. Elasticized trim.