Weathertech is one of the biggest names in floor mats and other protective components for your Sierra, and with good reason – they not only make a huge assortment of 1999-2017 interior parts but also many 1999-2013 and 2014-2017 exterior components, too. Their 1999-2017 tools & gifts include protective devices to help keep the interior of your truck cooler in summer and to less UV damage to interior surfaces, such as their 1999-2017 sun shields. These include both windshield-only and whole-vehicle solutions. The company offers products that make your pickup’s bed more useful, including 1999-2013 and 2014-2017 bed covers, and 1999-2017 bed weights & liners. 1999-2017 exterior trim features hood protectors, front and rear window deflectors, and bug deflectors. Their extra-tough 1999-2017 floor mats, however, are the best known of Weathertech’s products, made for high traction, excellent containment of water, dirt, mud, and snow, and their permanence – backed up by a limited lifetime warranty.