prowaist™ - Sweat Sauna Shaper Vest

I was skeptical about the heat-trapping polymer at first, but it really does crank up the sweating during my morning workouts. The vest stays put and doesn't bunch up under a t-shirt, which I didn't expect.

Wore this on a 40-minute walk and came back soaked through the back panel, way more than my regular tank ever did. The polymer texture feels a little crinkly at first but you forget about it once you start moving.

The heat-trapping polymer layer really does its job—I feel the warmth building within minutes of putting it on, and by my afternoon walk the sweat is pouring off my midsection. It’s snug but not suffocating, which makes it easy to keep on through a full workout session.