Combinaison isolante Helly Hansen Alna 20 jaune

Construction crews and industrial workers facing harsh winter conditions rely on the Helly Hansen Alna 20 Insulated Winter Coverall to stay warm, dry, and visible on the job. Built with Helly Tech® Performance waterproof fabric and PrimaLoft® Black Eco insulation, this coverall delivers dependable protection in cold, wet environments.

Key specifications

• Waterproof and breathable Helly Tech® Performance membrane (20,000 mm / 15,000 g/m²/24h)
• PrimaLoft® Black Eco insulation: 100 g/m² in body, 80 g/m² in sleeves and hood
• High visibility EN ISO 20471 Class 3 certification with reflective details
• Fully taped seams for complete weather protection
• Detachable, adjustable hood and boot zippers for easy on/off
• Multiple utility pockets: chest, hand, ruler, and knee pad pockets
• Adjustable cuffs and internal waist adjustment for a customized fit
• Regular unisex fit suitable for both men and women

Why choose it

The Alna 20 coverall combines rugged durability with advanced weather protection. Its high-visibility yellow and ebony color scheme, along with reflective details, ensures you remain seen in low-light conditions, while the waterproof and breathable membrane keeps you comfortable during intense work. The eco-friendly PrimaLoft® insulation provides warmth without bulk, and the reinforced knee pad pockets add functionality for demanding tasks.

Ideal use cases

• Construction and building sites in cold, wet weather
• Road work and traffic control requiring high-visibility clothing
• Industrial maintenance and outdoor work in winter conditions

Good to know

Certified to EN 343:2019 Class 4,1,X for waterproofness and breathability, and EN 342:2017 for cold protection. Main fabric is 100% polyester with a 100% polyamide lining. The coverall features a detachable hood, boot zippers, and multiple utility pockets for tools and essentials.