Stromberg Silves golf trousers feature a Nano Sphere water repellent finish for ultimate performance on the golf course. Nano Sphere technology is exclusive to Stromberg Golf. The Nano Sphere finish allowes the Silves trousers to look & feel like a normal pair of trousers but with a higher performance. Please note that the Silves trousers are water repellent & not water proof. They do not come with a water proof guarantee. 65% Polyester/35% Viscose Nano sphere Finish Seagul Grey with Blue Pinstripe Woven in Yorkshire