The Helly Hansen Chelsea Evolution 2.0 Shell Jacket is a fully taped HELLY TECH® PROFESSIONAL waterproof outer layer designed for active trades work in wet conditions. With a 20,000mm waterproof rating and EN 343:2019: 4,4,X certification — the highest breathability class available — this is a shell jacket that manages both weather protection and moisture vapour transmission at a professional standard. The Stretch Cordura® reinforcement on shoulders and bottom hem addresses the areas that take the most site punishment, while the overall construction from recycled polyester reflects a responsible approach to production. The bluesign® certification, German-quality AMANN threads and fully taped seams combine to produce a shell jacket that can be trusted across a full working season. The extended back, articulated sleeves and adjustable hem ensure it works with the body through the most demanding working positions. Key Features & Benefits HELLY TECH® PROFESSIONAL 20,000/15,000 waterproof/breathable membrane - professional-grade protection at the highest available breathability class EN 343:2019: 4,4,X certification - independently verified at maximum Class 4 rain and Class 4 breathability Stretch Cordura® reinforcement on shoulders and bottom hem - durability where daily site work takes its toll Fully taped construction - complete seam-sealing for professional waterproof integrity No shoulder seams - unrestricted overhead and active movement without pressure points Brushed tricot inside collar - comfort at the neck during extended wear Detachable hood with vertical and horizontal adjustment - adaptable for variable conditions throughout the working day YKK® front zip - reliable, quality closure that works consistently across the season CORDURA® fabric reinforcement on shoulders - additional protection at the most punishing wear point Chest pocket with YKK® zip - dry, secure storage for smaller essentials Hand pockets with YKK® zips and brushed lining - warm hands and reliable access Inside stash pockets - secure internal storage Adjustable cuffs - weather seal at the wrist Articulated sleeves - designed for the full range of working movement in all positions Extended back - stays in position through bending and forward reach Adjustable hem with drawcord inside hand pocket - quick adjustment without removing hands Stretch Cordura® fabric reinforcement on bottom hem - long-service durability at the lowest wear point AMANN threads - German-quality stitching throughout ID card loop - site access always at hand Bluesign® certified - responsibly produced throughout the supply chain Recycled Content - 100% recycled polyester main fabric Ideal For Trades workers who need a fully certified, highly breathable waterproof shell for layering over insulating midlayers during wet British site conditions throughout the working year. Why We Love It EN 343:2019 Class 4 certification for both protection and breathability in a Stretch Cordura®-reinforced shell — the Chelsea Evolution 2.0 Shell Jacket is what serious waterproof workwear looks like. 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"