4F Men's thermoactive underwear

Made of stretchy fabric in 4F-WARM technology. Brushed-back knitted fabric provides extra warmth. For use as a second layer of clothing.

What makes this baselayer tick?

• the high collar functions as a half mask with a ventilation panel on the front and adjustable drawcord.
• A second layer of clothing.
• slightly extended back for extra back coverage.
• combed interior for extra warmth.
• smooth, stretchy knit for comfort during use.
• raglan-style seams in sleeves do not restrict movement.
• the quick-drying finish promotes faster wicking to the outside.
• Polyester 93%, Elastane 7%