This 2-pack men’s UPF 50+ long sleeve t-shirts are made of professional sun-proof functional cotton blended fabric, adopting high-density weaving technology to achieve UPF 50+ high-efficiency ultraviolet protection, effectively isolating sun damage for outdoor wear. The fabric is soft, lightweight and breathable, avoiding stuffiness and restraint during long-sleeve wearing. Adopting fine double-needle stitching and edge-locking craftsmanship, the cuffs, hem and neckline are firmly reinforced with excellent shape retention. The professional color-fixing and anti-washing treatment ensures no fading or performance attenuation after repeated cleaning. The slim and versatile version fits the body perfectly, suitable for all-season wear. Ideal for outdoor work, hiking, running, travel and daily commuting, these sun-proof long sleeve tees provide reliable protection and comfortable wearing experience.