Upgraded Thickened Version - Made of upgraded volcanic mud fiber, this thermal underwear for men stands out on warmth, comfort and moisture wicking system; And the long johns for men locks in your own body heat effectively through the intelligent thermal system; Also ,as warmer athletic thermals, base layer men protects you from muscle injury which is perfect for layering ; It is very stretchy material that isn’t binding at all as functional sportswear Multi-functional Advanced Material - Superior to other fabrics , our long johns for men, it performs well on heat retention and moisture wicking; The fiber takes in three times water than other fabrics; Consequently it gets rid of moisture faster, and keep you warm and dry with no sticky or clammy feeling Beat the Cold - Designed with ultra-soft lining fleece, the thermal underwear for men keeps the cold air out and preserve heat effectively in Extreme Cold Weather; Also, the intensive and professional seaming reduces heat dispeating; It is the best base layermen in cold weather to keep you warm during skiing, running, jogging, hiking, riding, walking the dog in winter Upgraded Thickened Version - Made of upgraded volcanic mud fiber, this thermal underwear for men stands out on warmth, comfort and moisture wicking system; And the long johns for men locks in your own body heat effectively through the intelligent thermal system; Also ,as warmer athletic thermals, base layer men protects you from muscle injury which is perfect for layering ; It is very stretchy material that isn’t binding at all as functional sportswear Thermal Underwear for Men Long Johns for Men, Long Underwear Mens Base Layer Men for Cold Weather