Hot Chillys Geo-Pro is great for all your outdoor needs as well as perfect for your casual lifestyle. Interlock construction creates a virtual double knit, insulating fabric with extra bounce and durability. MTF fibers move moisture off the skin and away from the body. Soft spun yarns utilize new technology for a super soft, lived in feel. Perfect for year-round use.Read more
Ultra-violet Protection Factor, a rating system that measures the UV protection of which is provided by a fabric. Similar to the SPF rating system used in sunscreens.