Viking Roni Bamboo men's thermal underwear black 500-23-0924-09 Properties: The Viking thermal underwear set for men is perfect for activities on colder days. The antibacterial properties of babusa fabric are aimed at regulating body temperature. Breathable, anti-allergic material ensures a high level of hygiene. The light and airy construction fits perfectly to the body. Material: 79% bamboo viscose, 16% polyamide, 5% elastane