We honed in on the elements that made the men's Seasonless Long Sleeve an instant favorite and added updates that help you get the most out of every season. From sunshine, to foliage to winter frost, this running wardrobe mainstay is made with new lighter weight, exceptionally soft fabric that delivers the perfect unity of warmth and breathability so you can enjoy the scenery any time of year. For sunny springtime runs when days start getting longer, the Seasonless Long Sleeve offers UPF 40 sun protection. The men's Seasonless Long Sleeve features an athletic fit cut from soft, stretchy NB Dry fabric that wicks moisture away when your run heats up. Hidden thumbholes help keep the sleeves in place, while reflective hits at the hem offer a bit of day-and-night shine.