worboo Men's Ultra Soft 3-Pack 95% Bamboo Viscose Undershirts Tank Top Fabric material: bamboo pulp fiber 95% / 5% spandex(200 gram breathable fabric). Wearing Experience: you can feel he is softer than any cotton shirt, and he's heavier than cotton shirt, not because that he is thick, but because that the density of the fabric is big. Compared that cotton is pruritic, we have smooth touch, the temperature of the clothes we wear is lower than the ordinary clothing, tightly fit us, with big elasticity, strong permeability, uneasy deformation, which make us feel that they are great quality clothes. Applied to: You can wear it to ride a mountain bike, to watch movies while drinking coffee, to travel outside, to rest at home, to work and so on. Unique advantages: anti-bacterial, odor control, moisture breathable, soft and comfortable, blocking UV rays, uneasily balling-up and reduce static electricity. Sales: WORBOO is only sold in Amazon, imported with original packaging, free shipping. Good gifts:You can also take them as gifts giving them to a friend, husband, boyfriend and dad.