Our premium butter-soft bamboo rayon fabric combo keeps you warm and comfortable when the temperature drops. When you wear Chill Boys long johns, you'll work out more. You'll walk to lunch more. You'll be more comfortable lounging around the house. It's a better way to enjoy the cool weather months. Temperature regulating Inner-leg vents provide cool airflow where you need it most. 

• 95% Bamboo Viscose, 5% Spandex, Polyamide Vent
• Easy access fly closure
• Super soft bamboo long underwear for men
• Temperature regulating base layer - Perfect men's leggings for work, sleep or play
• Comfortable long underwear and cold weather gear for exercise apparel, hiking clothes, camping gear, fishing, running, hockey, and working out
• Made of premium bamboo rayon fabric - Warm winter base layer
• Flexibility, comfort, and support for the boys
• Inseam length 31 inches (one length fits most)