SBR is the classical fabric used in making diving apparatus, and it is air- proof, water- proof, thermal, shock- resistant, quick- dry and erosion- resistant in physical performance. And it bears soft, stretchy and comfortable hand feels. So just feel carefree to choose the shaping shirt. And if there is some rubber odour when you receive it, do not worry it would do harm to your skin because it is harmless and eco- friendly! While doing exercises, you core temperature will be raised and you will sudorific and feel hot because the fabric¡¯ s locking the heat and help burning fat. Scientists confirms that the sweat is four time the amount of usual shaping shirt, and that is say, the shirt shortens 3/4 time of the one you used to use to loose your weight! The shirt is also smart and considerate in details£ºThe no- zipper or no- other- buckle¡¯ s design eliminates the danger to be hurt by them, and also keeps you away being constrained, surely giving you comfortable dress feeling! Stitches are firm, neat and clean, protecting the shirt to be out of shape. Tips for washing: Hand wash please / Flat dry is recommended/ Do not bleach/ Do not iron/ Do not twist or wring/ Do not dry it under strong sunlight.