The Sun & Air knee covers are lightweight sleeves designed for use in higher temperatures than the heavier Pre-Shape Kneewarmers. Seamlessly knitted with a polypropylene-polyamide-elastane thread, the Sun & Air offer a modicum of thermal protection while also wicking sweat and regulating temperature well. With 50+ SPF sun blocking abilities, they're an ideal accessory for riding in climates that demand high UV protection during the ride. Materials: 60% polyamide, 30% polyester, 10% elastane