The secret to your killer workout routine' Keep it under wraps with the Women's Under Lock and Keyhole Tank Top by Beyond Yoga. Mum's the word with this sophisticated performance tank. A stylish halter neckline transitions to crisscrossing straps in the back with keyhole detailing. Supplex fabric provides generous stretch and moisture management to keep you comfortable through your toughest workouts. Pair it with your favorite leggings or wear it with those perfectly worn-in boyfriend jeans.