The Under Armour Women's UA Iso Chill Remi Short Sleeve Shirt takes the ordinary tee to a whole different level of performance. A shirt that will keep you cool Yup. This top features Iso Chill technology that creates a coolling sensation, while you wear it. Pretty neat stuff, when the heat is on, and you're on the go. 3.68 oz. 100% nylon fabric. Built with Hydro Armour water fighting technologies so it's quick drying and chlorinesalt resistant. UPF 30 sun protection. Heathered Iso Chill cooling technology made from yarns with increased surface area that help dissipate heat from the body, creating a cooling effect. ArmourBlock neutralizes odor causing microbes to keep the shirt smelling fresher longer. Fitted Contoured to the body, without the constriction of compression. Import.