UV Heat Shields help reduce interior temperature and protect the interior from damaging sun rays that penetrate the front windshield. The Covercraft heat shields are custom patterned, insulated and are custom patterned to follow the outline of the windshield. We have over 500 patterns to fit most popular cars, pickups and vans. Front windshield UV shields provide protection at the beach, work, airport...anywhere you park, and they're easy to use. This premium quality, custom patterned, folding heat shield has a silver reflective fabric on the outer side, soft felt on the inside. The fabric is laminated to a foam-core board which acts as an insulator. Easy to use - just unfold and position across the windshield surface, then fold the sun visors down to hold the shield in.