Fourth Element | SKU: XAMF5BKXS

Fourth Element Xenos ARC 5mm Men's Wetsuit

£399.00

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Now Available for Pre-Order at Mike’s Dive Store - Expected Delivery January 2026

Fourth Element Xenos ARC Wetsuits 2025: The OceanPositive Revolution

Now Available for Pre-Order at Mike’s Dive Store - Expected Delivery January 2026

The next generation of sustainable dive wear is here.
Built for warmth, performance, and a lighter footprint, the all-new Fourth Element Xenos ARC redefines what a wetsuit can be - combining exceptional thermal protection with cutting-edge eco innovation. Designed for comfort across multiple dives, it’s the perfect blend of OceanPositive design, natural materials, and uncompromising performance.

Whether you’re hopping between dives on a liveaboard or exploring cooler tropical waters, the Xenos ARC 5mm brings together warmth, flexibility, and ease of use in one seriously comfortable suit. Designed to slide on effortlessly, even between dives, it features fast-dry, low-friction linings and stretchy, recycled materials that mould to your body like a second skin.

Made from Ocena® natural rubber – a renewable, FSC-approved and bio-based material blended with recycled car tyres – this wetsuit resists long-term compression while remaining soft, stretchy, and warm. It’s better for the ocean and better for you.

Inside, the Thermoflex lining helps trap warmth without bulk, while triple-glued, blind-stitched seams and a Glideskin neck seal keep the cold out. Every element of the design has been considered – from the smooth skin zipper pad that reduces flushing to the abrasion-resistant knee pads and cut-away heel notch that makes donning and doffing a breeze.

Features:

Made with Ocena® – a composite of natural rubber and recycled car tires – resists long term compression
Lined with Recycled Polyester (42%), recycled elastane (8%) and Nylon (50%)
Triple glued and blindstitched, watertight seams
Thermoflex thermal lining on torso for warmth
Hydrolock wrist seal on 3mm and 5mm
Glideskin neck seal
Smoothskin zipper pad to minimise water ingress
Abrasion-resistant knee pads
Cut away back heel notch for ease of donning and doffing

Warm, flexible, and unbelievably easy to wear, the Xenos ARC 5mm is your go-to for cooler conditions and busy dive schedules. Designed with sustainability at its core, it performs better than traditional neoprene – proving you can dive responsibly without sacrificing performance.

Pro Tips for Easier Donning & Longer-Lasting Seals:

Add Mcnett Neoslix to help with donning and doffing your wetsuit while also prolonging the life of the seals, or try the Waterproof Donning Socks. These Lycra socks are designed to make getting into your wetsuit effortless, protecting the suit from wear and tear and preventing you from getting stuck. They also provide comfort for barefoot fin users, helping to prevent painful rashes with a soft, protective layer.

OceanPositive by Fourth Element: Diving with Purpose

Fourth Element’s OceanPositive Collection was created with one clear mission: to protect the oceans we explore. Every product in this range is designed to reflect Fourth Element’s deep commitment to sustainability. By using recycled fabrics, responsibly sourced materials, and waste-reducing production methods, OceanPositive gear is made to perform beautifully while remaining gentle on the planet.

The OceanPositive ethos goes beyond the products themselves – it’s a statement of purpose. Every purchase of selected OceanPositive items at Mike’s Dive Store supports marine conservation, with 1% of each sale donated to Sea-Changers, an organization funding vital ocean conservation projects worldwide.

Explore the Fourth Element OceanPositive Range

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.

Book Now

Click here for our handy guide on how to look after your wetsuit

We offer free tracked UK standard delivery on orders over £50 (Excluding Weights and Cylinders, as they must go on a separate service to your order)

Standard UK delivery and Next Business Day UK delivery rates are calculated at checkout and offers a number of courier options for maximum convenience to you.

International shipping rates depend on items, shipment weight and destination. Shipping costs are calculated at checkout.

Estimated delivery times are shown during checkout and reflect your chosen delivery method. More Details

60 Day Stress Free Returns

If you change your mind, it doesn’t fit, or you become inflicted with buyer’s regret - that's OK!

Mike's Dive Store offer an extended returns policy of 60 days - so you can be rest assured if the suit, piece of diving equipment or gift doesn't suit then just send it back, and we will either exchange it or offer a full refund less any postage costs. Too easy!

Please note that there are some special order items on our website that will be subject to a 20% re-stocking fee, but we will let you know about these items before we 'special order' them so that you are aware of this. If this is the case we can always help with correct sizing so that we minimise the risk of return. More Details

Returning To Chiswick Store

We want to make your shopping experience as seamless and enjoyable as possible, even when it comes to returns. That’s why we offer hassle-free returns at our Chiswick store. But there’s more—when you visit to make a return, you can also pre-order items to be available for collection. This means we’ll have a range of sizes ready for you to try on, ensuring you find the perfect fit before leaving the store.

Shop with Confidence, Wherever You Are
To make things even easier, we offer complimentary video consultations with our expert team. Whether it’s before or after your purchase, our specialists can guide you through sizing, fit, and styling—all from the comfort of your home. It’s like having your own personal VIP shopping experience, tailored just for you.

From returns to reorders, we’re here to help you find exactly what you need with zero stress.

Book Video Consultation: Book Now

We offer the option for customers to choose ‘Pickup in store’ as a shipment method, allowing your order to be picked up from our Chiswick store at a time and date that works for you (within our business hours). The process is really easy, but we'll run through it here:

Step 1 - Add products to your cart:
Browse our vast selection of diving and snorkelling equipment, adding the kit you want to your cart.

Step 2 - Head to your cart:
Click on the cart icon to see a summary of the items you are about to purchase.

Step 3 – Review Your Order and Proceed to Checkout:
Once you're satisfied with the items in your cart, you can add a note to your order under the "Order Summary" section if desired. When you're ready to proceed, simply click "Checkout" to complete your order.

Step 4 - Customer Information:
If you have a Mike's Dive Store account, simply log in to autofill your details. If not, enter your email address, select ‘Pickup in Store,’ and then click ‘Continue to Payment’ to proceed.

Step 5 – Payment & Billing Details:
Select your preferred payment method and enter your payment information. Below, provide your billing details. If you're logged into your account, please double-check that your billing and contact information are up to date.

Step 6 – Review Order:
After entering your payment details, click ‘Review Order’ to proceed with placing your order. You will receive an email confirmation with your unique order number. We will notify you when your order is ready for collection, usually within 4 hours or sooner during our opening hours (Monday to Saturday, 10 AM to 6 PM). Please note that our hours may vary during the Christmas and New Year periods.

Our London Store Information:

Address:
Mike's Dive Store, 113 Power Rd, Chiswick, West London, W4 5PY

Telephone:
Local: 01202 037162
International: 0044 1202 037162

Email:
All Enquiries - support@mikesdivestore.com

Store Opening Times:
Mon - Fri: 10am - 6pm
Sat: 10am - 5pm
Sun: Closed

Sizes	Height	Chest	Waist	Inside Legs
	CM	CM	CM	CM
X Small Short	160 – 166	88 – 93	73 – 78	73 – 76
X Small	165 – 171	88 – 93	73 – 78	76 – 79
Small Short	165 – 171	93 – 98	78 – 83	76 – 79
Small	170 – 176	93 – 98	78 – 83	79 – 82
Small Tall	175 – 181	93 – 98	78 – 83	82 – 85
Medium Short	170 – 176	98 – 103	83 – 88	79 – 82
Medium	175 – 181	98 – 103	83 – 88	82 – 85
Medium Tall	180 – 186	98 – 103	83 – 88	85 – 88
Large Short	175 – 181	103 – 108	88 – 93	82 – 85
Large	180 – 186	103 – 108	88 – 93	85 – 88
Large Tall	185 – 191	103 – 108	88 – 93	88 – 91
X Large Short	180 – 186	108 – 113	93 – 98	85 – 88
X Large	185 – 191	108 – 113	93 – 98	88 – 91
X Large Tall	190 – 196	108 – 113	93 – 98	91 – 94
XX Large Short	185 – 191	113 – 118	98 – 103	91 – 94
XX Large	190 – 196	113 – 118	98 – 103	91 – 94
XXX Large	195 – 201	118 – 123	103 – 108	94 – 97

Fourth Element Xenos ARC 5mm Men's Wetsuit

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