The lightweight, multifunctional neckwear made from recycled plastic bottles has SPF 50 sun protection and provides cooling through evaporation effects. Running, jumping, hiking, fishing, paddling, camping - what are your favorite summer activities? Wherever you wear them, you'll feel cool and fresh and protected from the sun on every summer outing. UPF 50+ against UV rays. Textile samples are tested for UV protection in accordance with international standards. HeiQ Smart Temp is an intelligent thermo-regulating technology for fabrics that is triggered by body heat to maintain optimal body temperature. Made with 95% recycled content.Feels light and dries quickly for freedom and comfort. Ultimate stretch and seamless comfort that moves with you. POLYGIENE® (Stay fresh) Highly effective antimicrobial technology that uses natural silver salt in low concentration to inhibit the growth of microorganisms for odor control. 95% Recycled Polyester 5% Spandex - Made in Spain.