Perfect for those hot summer days, this ultralight breathable short sleeve shirt almost feels as if you are wearing nothing at all! The sleeves on this shirt give you added protection against both the sun and chafing of your upper arms. Throw it on for your next warm weather run or a day out on the water and feel the difference. Flat, no-chafe seams for ultimate comfort SMART REFLECTIVE technology for increased visibility and safety in the dark Perfect sleeve length to prevent chafing and add extra protection from the sun Innovative dot design for better breathability Ultralight material Material: 90% Polyamide, 10% Spandex