worboo Free Cut Ultra Soft Comfortable Bamboo - Men's V-Neck Undershirt - Luxury Undergarments Fabric material: bamboo pulp fiber 95% / 5% spandex(200 gram breathable fabric). Unique craft: whorl weaving and advanced molding craft, not off-clip, not raw edge, maximize the elasticity of clothing, without any sense of restraint. Senior spandex: Imported high temperature solubility spandex, effective fusion locks the yarn. 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. Good gifts:You can also take them as gifts giving them to a friend, husband, boyfriend and dad.