Item Description A top quality double pull lumbar brace offering both compression and support to the abdominal and lower back muscles. Provides comfort, support and warmth to relieve pain. The Double Pull neoprene back support is the most recommended brace in the market by Doctors and Physiotherapists. Designed by back experts, this brace aims to provide both stability and flexibility to the users. The ingenious design of Double Pull mechanism means the inner neoprene wrap provides the best possible compression, heat retention and comfort, whilst the unique criss-cross extra strength elastic strap would give you the extra shield of stability and support. The support provided by the compression strap improves posture to aid treatment of back problems such as a slipped disc, degenerative disc disease and Sciatica. The heat provided by the high quality neoprene can help to ease back muscle spasms and low back pain associated with a herniated disc and spinal stenosis. Product Material High Quality Neoprene. Neoprene belongs to a family of synthetic rubbers which are ideal for orthopedic braces such as back, knee, wrist etc. Size Guide: Small 90cm Medium 100cm Large 110cm XL 120cm XXL 130cm XXXL 140cm 4XL. 150cm 5XL. 160cm 6XL. 170 Width 9" Please note that the waist size should be around the belly button measurement not under the belly and in case of doubt please take a larger size that can be adjusted with the Velcro to your waist