Rab Sonic Ultra Zip Super Sonic When you need a little extra coverage during those cooler days or sun protection on warm days, you'll love wearing a long-sleeved tee. The Rab Sonic Ultra Zip is a highly efficient mountain running layer. Slim fitting, adaptable, and built with unhindered articulation and an odor control finish. Designed to offer you a layer of protection on cooler days when a tee won't cut it, or hotter days when covering up from the sun is key, it's responsive to your output, eliminating the need to constantly change layers. Built with ultralight Motiv Aero fabric, it is fast-drying, quick-wicking, and highly breathable. With its subtle mesh structure, the fabric wicks moisture away from the skin, keeping you dry on those steep, challenging climbs. It has laser-cut vent holes in high heat areas, like the back of the neck and under the arms, and the deep chest zip is ideal for dumping heat quickly and keeping the air flowing. Perfect for runners travelling far and fast, crossing contours, and weathering all conditions. Features Motiv Aero single jersey fabric with a subtle mesh structure and an odor control treatment Lightweight fast-wicking fabric with bulk yarn technology Reflective branding helps enhance your visibility in low-light conditions Laser-cut vent holes in the back of the neck and underarm panels Lightweight deep center front zip for enhanced ventilation SPECIFICATIONSMaterial100% Polyester Sleeve Length Long Sleeve Closure Type Half Zip Fit Slim Fit Intended Use Mountain, Road Special Features Reflective Branding Sizing Size XX-Small Extra Small Small Medium Large Extra Large XX-Large Chest (in)34"35. 5"37"40"43"46"48"Waist (in)27"28"30"32"34"36"39"Arm Length (in)32"33"33"34"35"36"36" | Rab | Sonic Ultra Zip Men's | 100% Polyester