Portwest SK18 Extreme Cold Weather Sock

The Portwest SK18 Extreme Cold Weather Thermal Sock delivers exceptional warmth and impact cushioning for cold storage warehouse operatives, outdoor winter crews, and freezer technicians. Engineered with high-percentage thermal wool and thick terry-loop padding throughout the foot and leg, it insulates extremities down to sub-zero temperatures. Tested to SATRA TM 436 thermal performance criteria, it maintains vital foot warmth inside heavy work boots.

Key Features:

• High wool content knit provides superior thermal insulation in sub-zero environments
• Full terry-loop internal padding cushions footbed against jarring heel strikes
• Tested and verified to SATRA TM 436 cold-weather thermal retention benchmarks
• Moisture-wicking construction draws sweat away to prevent conductive chilling
• Elasticated ribbed calf band prevents bunching inside tall gumboots and riggers

Product Specifications:

• Thermal Standard: Verified under SATRA TM 436 cold resistance testing
• Yarn Blend: Heavy thermal wool blend with polyamide and elastane
• Height: Mid-calf boot sock length for tall safety footwear
• Construction: Full terry-knit footbed and reinforced shin padding
• Style Code: SK18