Fully-adjustable rubber nose pads for added comfort & grip Stainless steel front & temples provide an additional layer of durability Rubber tipped temples add extra grip so they stay firmly on your head Auto-lock stop hinge allows the temples to lock securely in place for a sturdy fit Rx compatible Under Armour Men's UA Impulse Square Style Sunglasses – Silver Frame/Blue Lens, UA IMPULSE-0010. If you run, train, or play when the sun's out, you need to protect your eyes. These sunglasses were built to do just that. These sunglasses feature a mirror coating which offers improved sun protection, durability & scratch resistance with a stainless steel front & temples provide an additional layer of durability. A fully-adjustable rubber nose pads for comfort & grip and rubber-tipped temples add extra grip so they stay firmly on your head.UA IMPULSE-0010