Yonex Poly Tour Rev is a polyester monofilament string which offers a firm feel with spin potential. Octagonal shaped monofilament core has been finished with a high polymer polyester.
SIF Technology, Silicone Oil Infused Filament, has been utilised which is a coating to assist with string snapback and movement, together with spin potential.
A great choice of string for baseline players who have a medium to fast swing speed and require a shaped string to grab the ball with bite.