Definition: Inverted rubber is sandwich rubber with the topsheet glued to the sponge with the pimples in (the other side of the sponge is glued to the blade), leaving the smooth side of the topsheet to strike the ball.
Inverted rubber can give the widest range of spin of all types of rubbers. Inverted rubber that has little or no grip on the topsheet is also known as antispin.
Also Known As: smooth rubber, pimples-in rubber, pips-in rubber, reverse rubber, normal rubber