Read more Sonora Jacket Our sun-smart Men’s Jacket is the perfect piece to layer with your other Coolibar favorites. Mock neck to thumbholes, this lightweight jacket feels super soft against the skin and blocks 98% of UVA/UVB rays. Read more Technical. Elegant. Sun Protection You Wear. The Coolibar Advantage Not all clothing is sun protective, and not all sun protective clothing is created equal. Some brands use a spray-on coating to achieve their UPF, but ours is woven in so it never washes out. Our philosophy merges fabric innovation and styles that are classic with exceptional design details so you stay cool, calm and covered. Clothing is the first line of defense against harmful UV rays. Our exclusive UPF 50+ fabrics will block 98% of UVA/UVB rays from the first day the product is worn until the day your garment is retired. Coolibar’s UPF 50+ clothing and accessories are wear-tested, designed for maximum stretch and comfort, and feel good against the skin. Every style, every design is UPF 50+. Our Mission. Keep the world safe from sun damage, protect those with a sun-related medical condition and prevent everyone else from developing one. We believe everyone deserves the right to an active, outdoor lifestyle in the sun, so Coolibar clothing and accessories are UPF 50+. Sun protection is our sole purpose. That’s why we custom design, produce and offer technically elegant styles in proprietary fabrics that block 98% of UV rays. As trusted experts in sun safety, we know the more you're covered, the more you're protected, and the more you'll enjoy a carefree life outside.