Lamkin Stingfree Crossline Tour Golf Grips Only £7.99 Each. Lamkin’s Sting Free Crossline Tour grip features an innovative 3-layer composite technology that absorbs up to 90% more vibration and shock than conventional golf grips. The synthetic base layer absorbs and converts swing impact vibrations, while a stabilizing layer of Kevlar blocks and redirects the impact for maximum shock absorption. The softer outer layer provides tack, traction and comfort. Hand alignment guides aid in proper placement.