The Helly Hansen Chelsea Evolution 2.0 Winter Jacket is a HELLY TECH® PROFESSIONAL insulated waterproof jacket built around a 2-way mechanical stretch main fabric — a construction choice that gives it a noticeably more natural movement than stiffer waterproof alternatives. With a 20,000mm waterproof column, fully taped seams and PrimaLoft® BLACK Eco insulation, it delivers serious cold-weather protection across the full EN 343:2019 Class 4 rain standard and the EN 342:2017 cold protection standard. This is a jacket that has been designed to perform at the highest levels of certification available. The Stretch Cordura® reinforcement on shoulders and bottom hem takes the daily abuse of site work, while the practical pocket layout — chest, hand with brushed lining, and inside stash — keeps the working day organised. A bluesign® certified jacket built from recycled content that doesn't ask professionals to make any compromise between responsibility and performance. Key Features & Benefits HELLY TECH® PROFESSIONAL 20,000/15,000 waterproof/breathable membrane - the highest standard of weather protection in the Chelsea Evolution range EN 343:2019: 4,1,X and EN 342:2017 certification - full compliance with professional weather protection standards PrimaLoft® BLACK Eco insulation - serious warmth that retains performance even when the jacket encounters moisture 2-way mechanical stretch main fabric - a more natural, flexible movement than conventional waterproof shells Stretch Cordura® reinforcement on shoulders and bottom hem - the highest-wear areas protected with the most durable fabric Fully taped construction - complete seam-sealing for waterproof integrity in prolonged wet weather No shoulder seams - unrestricted overhead movement and no pressure points under loads Detachable hood with vertical and horizontal adjustment - adaptable for changing conditions throughout the day Brushed tricot inside collar - comfort against the neck for extended wear YKK® front zip - reliable closure throughout the working season Chest pocket with YKK® zip - dry, accessible storage for smaller essentials Hand pockets with YKK® zips and brushed lining - warm hands, accessible pockets Inside stash pockets - secure internal storage for valuables Adjustable cuffs - seal in warmth and keep weather out at the wrist Articulated sleeves for optimal mobility - designed for the full range of working movement YKK® zip for underarm ventilation - regulate temperature during high-output tasks Adjustable hem with drawcord inside hand pocket - quick adjustment without removing the hand from the pocket Extended back - stays tucked during bending and forward work Stretch Cordura® fabric reinforcement on bottom hem - durability at the most punishing wear point AMANN threads - quality stitching for a long working life ID card loop - site access always ready bluesign® certified - responsibly produced Ideal For Trades workers who face the full range of British winter conditions and need a fully certified insulated waterproof jacket with the flexibility to work comfortably across physically demanding tasks from first light to last knock. Why We Love It Full EN 343:2019 Class 4 rain protection, PrimaLoft® insulation and mechanical stretch — the Chelsea Evolution 2.0 Winter Jacket delivers certified professional performance with the flexibility that hard work demands. Colour: Black; Size: XS - Chest 34½, S - Chest 36", M - Chest 39½", L - Chest 42½", XL - Chest 45½", 2XL - Chest 48¾", 3XL - Chest 52", 4XL - Chest 55"