Features:
Excellent elasticity 
Self heating pad removable
5 metal plank for support and Helps to correct posture.
The best possible solution for back pain using compression, heat retention and comfort to deliver lasting relief to the back.
Smooth the nerve system, Promote blood circulation,Obvious effects for keeping health
Safe and convenient to use
 
Size reference:
S  UK 8-10 Length 88cm without stretch , max stretch 105 cm suggest waist: 25"-30"
M UK 12-14 Length 98 cm without stretch ; max stretch 115 cm suggest waist: 29"-33"
L  UK 14-16 Length 108 cm without stretch  ; max stretch 130 cm suggest waist: 32"-37"
XL UK 16-18 Length 118 without stretch ; max stretch 145cm suggest waist: 36"-40"

Colour: Black

Notes:
(1) The actural color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
(2) Please allow slight (�3cm) manual measurement deviation for the data.