Woolpower Socks 600 Premium insulating socks for UK outdoor professionals, arborists, climbers and all-day boot wearers needing serious warmth and comfort. The Socks 600 from Woolpower features terry-knit fabric in both the foot and shaft, built from the Ullfrotté Original 600g material — ideal for colder conditions or when you're standing, working or resting in boots. Key Features & Benefits Terry-knit in both foot & shaft: High-wool blend: Mid-high sock height: Sizes & colours for UK market: Machine washable & easy-care: Technical Specifications Specification Detail Material Composition 60% Merino Wool, 39% Polyamide, 1% Elastane Fabric / Construction Ullfrotté Original 600g – terry-knit in both foot & shaft Sizes Available (EU) 36-39 / 40-44 / 45-48 Colours Black Suggested Use Cold-weather boot wear and all-day insulation in outdoor/work environments Care Instructions Machine wash 60 °C; do not bleach; tumble low heat if needed Why Choose the Socks 600? If you’re working outdoors in the UK in challenging conditions — whether you’re in forestry, arboriculture, rigging or on long cold-shifts wearing boots — the Woolpower Socks 600 offer superior warmth, durable fit and premium comfort. They’re especially suitable when your lower legs need insulation and mobility under harnesses or in boots, helping you focus on your work rather than cold feet.