Already flying off the shelves in France, this unisex midsection cincher lets you belt your way to svelte. The secret is caffeine, which helps mobilize fat (read: use it for energy) and moisturizing, softening shea butter, embedded into the fabric as microcapsules. When worn under clothes, the belt unleashes the ingredients throughout the day as it rubs against skin, while providing firm support. We predict it’ll be the season’s hottest ‘anti-spare-tire’ attire. Poly/elastan blend. Natural. Sizes: S/M(26-32 waist) L/XL(34-38 waist).