One of the most popular back unisex brace, This Back Support provides a maximum level of support (level 3). It features a thermal 100% Latex-free Neoprene (CR) back panel with 4 resilient stays, cool, breathable side panels, and firm elastic side pulls that provide adjustable compression and support. Thermal neoprene back section provides therapeutic heat retention to help relieve pain and promote healing. Helps relieve lower back pain by reducing strain. Unisex Product Fully adjustable vented and breathable elastic side panels. Adjustable support with neoprene back panel for warmth and compression. Four stays for extra support. Easy application. Our most popular back support. Back measures 8.5\" at rear. Sizes (measure around waist) Small fits 20\"-26\" Waist. (50cm to 66cm) Medium / Regular fits 27\" to 33\" Waist.(67cm to 83cm) Large fits 34\" to 41\" Waist. (84cm to 104cm) XLarge fits 42\"-50\" Waist. (105cm to 127cm) Size S M L XL Waist 20\"-26\" 27\"-33\" 34\"-41\" 42\"-50\" Package Includes: 1*Back Support Brace Belt Lumbar Lower Waist Double Adjust