Description: This back support strap has double adjustment straps: it can provide customized fit and compression. It gives you immediate relief from lower back, and muscle pain. Adequate back support: the back support has eight strong support devices that can fix everything in place and provide sufficient support for the lower back area you need most. These retainers cling to your back without adding unnecessary compression or resistance. Omnidirectional movement: this stable strap is the best choice for comfortable lumbar support, while still allowing omnidirectional movement. Whether it's weight lifting, gym exercise, light exercise, or just doing housework. Lightweight and breathable: this strap bracket is made of lightweight but super durable materials. The mesh panel material we use can release excess heat and moisture. Strong practicability: all places such as driving, sports, travel and office are suitable for all day long wear. It also applies to people with low back pain and myalgia. Specification: Material: breathable mesh Size Chart: S Size: Length: 88-95cm/34.65-37.40inch; Width: 21.5cm/8.46inch; Waist: 68-78cm/26.77-30.71inch M Size: Length: 94-102cm/37.01-40.16inch; Width: 21.5cm/8.46inch; Waist: 78--88cm/30.71--34.65inch L Size: Length: 102-110cm/40.16-43.31inch; Width: 21.5cm/8.46inch; Waist: 88-98cm/34.65-38.58inch XL Size: Length: 108-116cm/42.52-45.67inch; Width: 21.5cm/8.46inch; Waist: 98-106cm/38.58-41.73inch XXL Size: Length: 114-120cm/44.88-47.24inch; Width: 21.5cm/8.46inch; Waist: 104-112cm/40.94-44.09inch Package Includes: 1 Piece Back Support Belt Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3. Wish you a wonderful on-line shopping!