Simmer RDM SX4 Aluminium Extension Impact Vests This position varies with the

This position varies with the wind strength and windsurfing discipline

and the fit system connects the shell liner to the users head so that it does not move around on your head

extra camber

Available in Blue & Fluo Yellow

Simmer RDM SX4 Aluminium Extension Impact Vests This position varies with theStainless steal fitting and new collar system. For RDM mast. SX4 RDM extension Universal Pin System with a quick release button. Durable aluminum tube combined with double pulleys for friction free, high tension downhauling. A great quality extension at an affordable price. Features Quick lock release. Stainless pulley system for less friction and greater durability. 0 cm extension possible.