Made By Mueller. This adjustable brace is designed to help counter the repetitive motions that can lead to Carpal Tunnel Syndrome. Wraparound design allows full finger mobility and limited thumb restriction. Mueller Green products are launching sports medicine into a new era of environmentally responsible products. The neoprene is made without the use of petroleum, the green fabric lining is made from recycled plastic bottles. Aegis Microbe Shield controls or eliminates odors, unsightly stains and product deterioration caused by the growth of bacteria and microorganisms.