The FXR Men's Surge Bamboo Longsleeve delivers soft, substantial warmth and moisture-managing performance for cold-weather layering. Built from a 280gsm knit blend of 53% bamboo, 34% lyocell, and 13% spandex, it provides comfortable stretch with a smooth next-to-skin feel. The contour fit enhances moisture wicking and supports rapid drying, while antibacterial, anti-odor, anti-pill, and anti-static properties help maintain comfort through extended wear. Tonal flat-lock seams reduce bulk for a streamlined fit, while thumbhole cuffs help keep the sleeves securely in place when layering. A longer body length helps prevent midriff exposure during movement, and screen printed logos with Thermalweld accents complete the technical design.