The Helly Hansen Chelsea Evolution Construction Vest is a robust HH Connect™ ™-compatible tool vest designed to be worn over an outer layer whilst on site, carrying the organisation and pocket flexibility of the HH Connect™ ™ system. Built from a cotton-mix main fabric with a 4-way stretch polyamide secondary fabric and Cordura® reinforcement, it's designed for the physical demands of construction site work rather than light-duty use. The safety harness opening, adjustable shoulders and removable interchangeable hanging pockets make it adaptable for different trades requirements, while the mesh ventilation ensures it won't trap heat during high-output tasks. This is a working vest designed around the practical realities of site life — multiple pockets, HH Connect™ ™ flexibility and the ability to work over a full winter kit when temperatures drop. Key Features & Benefits HH Connect™ ™ Compatible - configure the pocket system for your trade and your task Removable and interchangeable hanging pockets - carry what the job needs, change when the job changes Opening for safety harness - PPE-compatible without compromising the vest 4-way stretch secondary fabric - unrestricted movement even over bulky winter layers Mobile phone pocket with YKK® zip - phone secure and accessible throughout the working day Expandable front for improved movement - doesn't restrict when worn over insulated layers Adjustable shoulders with width adjustment - properly fitted for different body types Mesh ventilation for added breathability - manages temperature during high-output site work Broad centre back belt loop - extra stability for a loaded belt worn over the vest Bit pocket with YKK® zip - small parts secure and accessible External pockets on both sides with fastener/zip closure - additional organised storage YKK® front zip - reliable, easy-to-operate closure Removable belt - optional additional support Multiple pockets throughout - everything within reach, properly organised Cordura® reinforcement fabric - durability where site work demands it AMANN threads - quality stitching throughout ID card loop - site access always at hand Reflective design details - improved visibility in lower light conditions Possibility to use over winter jackets - designed specifically for cold-weather site use Ideal For Trades and construction professionals who need an HH Connect™ ™-adaptable tool vest that can work over winter layers, carries a full complement of organised pocket storage and accommodates safety harness use on site. Why We Love It An HH Connect™ ™ tool vest that's genuinely designed to go over a winter jacket — the Chelsea Evolution Construction Vest is the missing layer that brings organisation to the coldest days on site. Colour: Black; Size: S - Chest 36", M - Chest 39½", L - Chest 42½", XL - Chest 45½", 2XL - Chest 48¾", 3XL - Chest 52", 4XL - Chest 55"