1Breathable composite fabric, perforated design, breathable and comfortable, not sultry. 2Backpackstyle principle design corrects the hunchback and rejects bad body shape. 3Wear comfortably without straining, protect the spine, and skin. 4Integrated structure, fits the body, easy to wear, and increases the exertion surface of the body. 5Gather waist and belly fat, shape S curve, gather chest, and stand tall.