Completely seamless with a 4-way stretch and an invisible fit, meet the Form Seamless Adjustable Back Wireless Bra. Made in a lighter-than-air fabric with removable foam cups, this is a form-fitting wireless bra that gives you total freedom. This is one of those wireless bras you'll want to wear even when you're not working out. Need something to lounge in afterward? Check out our full collection of plus size lingerie.