● Material: Extremely thin fabric, weighs only 100g, comfortable for indoor wear, always standing upright. ● "8" Shape: Fixed correction, smooth load, moderate tension at the intersection checks multiple threads and shoulder blades in the correct position. ● Color: Black. ● Suitable for: Backpackers, those with uneven shoulders, those with long or short legs. ● Size: L Recommendations: Wear for 15-25 minutes on the first day, and add 20 minutes each day. Your back and shoulders will gradually adjust. Material: OK cloth + diving material 114-16＊40$70-260228