Arctic X Men's One Piece

If you're serious about cold-water diving, a one-piece undersuit is hard to beat — and the Fourth Element Arctic X Men's One Piece is about as good as it gets. One garment, head-to-toe coverage, no gaps between jacket and leggings, and no cold water finding its way to your lower back mid-dive. It's the kind of kit that makes you wonder why you ever bothered with separates. Built from recycled materials with a DWR water-repellent outer shell and a warm fleece lining, the Arctic X One Piece delivers serious thermal performance without the bulk. The full-length two-way zip runs the length of the front, making it straightforward to get on and off even in a cramped dive boat — and if you need a pee valve fitted, it's ready for one straight out of the box. Articulated sleeves and knees , combined with 4-way stretch fabric , mean the suit moves with you in any position, especially in horizontal trim where fit really counts. Thumb loops and single-layer foot stirrups keep everything in place while you're pulling on your drysuit, and the low-bulk ankle design means no fighting with excess fabric around your feet. Pockets give you quick access to small essentials, and subtle reflective detailing adds low-light visibility when you need it. Certified to Global Recycled Standard (GRS), Oeko-Tex 100 and Bluesign standards, plastic-free packaged, and machine washable. Available in both regular and short leg lengths. Key Features Full one-piece construction — eliminates cold spots and gaps between separate top and bottom layers Exceptional thermal protection with minimal bulk — purpose-built as a drysuit undersuit Full-length two-way zip for easy donning and doffing Pee-valve ready DWR water-repellent outer layer to shed moisture between dives Soft fleece lining for warmth without added weight 4-way stretch fabric for unrestricted movement in any position Articulated sleeves and knees optimised for horizontal trim Thumb loops to keep cuffs in place while donning Single-layer foot stirrups — slim ankle profile fits easily under a drysuit Integrated storage pockets Subtle reflective prints for low-light visibility Made from recycled materials — GRS, Oeko-Tex 100 and Bluesign certified fabrics Plastic-free packaging Machine washable Technical Specifications Colour Black Weight 1.30 kg Outer Shell 85% nylon, 15% elastane Inner Shell 95% polyester, 5% elastane Lining 81% recycled polyester, 12% elastane, 7% polyester Certifications Global Recycled Standard (GRS), Oeko-Tex 100, Bluesign Packaging Plastic-free Care FAQ One piece or separate jacket and leggings — which is better? It comes down to personal preference and how you dive. A one piece gives you seamless coverage with no gap at the waist — great for colder water or longer dives where you don't want any weak points in your thermal layering. Separates give you more flexibility, particularly if you run warm on top but cold on the bottom (or vice versa), or if you want to mix and match layers for different conditions. Both systems work well — it's worth having a think about how you typically dive before committing. Is the Arctic X One Piece suitable as a standalone undersuit? Yes — it's designed to work as a complete drysuit undersuit on its own in moderately cold to cold water. For very cold or technical dives, some divers choose to add an additional base layer underneath for extra insulation. What is a pee valve and does this suit come with one fitted? A pee valve (also known as a p-valve) is a discreet relief system that allows divers to urinate without removing their drysuit — useful on longer dives or in very cold water. The Arctic X One Piece is pee-valve ready , meaning it's designed to accept one, but it does not come with a valve fitted as standard. Fitting is typically done by a drysuit technician. Can I wear the Arctic X One Piece under any drysuit? Yes. The low-bulk construction and slim ankle profile are specifically designed to fit under standard drysuit boots without adding excess volume. The single-layer foot stirrups keep everything tidy during donning. How do I care for the Arctic X One Piece? It's machine washable — just follow the care label instructions. Avoid fabric softener, as it can degrade the DWR water-repellent coating over time. If the DWR performance drops off after extended use, it can be refreshed with a DWR re-treatment spray. VIDEO CONSULTATIONS NOW AVAILABLE: We're bringing our highly experienced and knowledgeable staff to you with live-streaming consultations. If you need help choosing the right bit of kit or the best size before buying or even advice on whether a purchased item is the right fit for you, then book yourself a consultation appointment .