luna surf wetsuit guide



The closed cells are packed together at an extremely high density and each individual cell is filled with nitrogen gas to prevent water penetration and increase heat retention. The nitrogen closed cell content is over 93% — over 30% higher than most competing materials — and with virtually no water absorption means the weight of this rubber remains nearly identical in wet or dry conditions, giving you more warmth than thicker wetsuits without the weight.


Yamamoto Corporation’s neoprene rubber is classified as (CR) “chloroprene rubber.” The special rubber incorporates an independent closed cell structure which adds high functionality including super light weight, high heat‐retention with good flexibility neoprene.


Virtually no water absorption means the weight of this wetsuit remains nearly identical in wet or dry conditions, giving you more warmth than thicker wetsuits without the weight.



Super Light Weight eco freindly Japanese limestone neoprene with the perfect balance between warmth, stretch and durability.




Rubber made from the purest Japanese limestone.

The limestone that YAMAMOTO use is sourced from Mt. Kurohime, which stores billion tons of the purest Japanese limestone. Out of such purest limestone, YAMAMOTO only uses the highest-grade limestone, containing 99.7% of calcium carbonate. (The lower-grade limestone is used for cement.)
Rubber can be made from Natural Rubber (NR) latex or petroleum oil.


Quick drying, comfy, thermal, silky smooth recycled linings makes for a snug, warm, lightweight, high performance wetsuit. We believe that to make a great wetsuit you need the best eco aware materials.


Every seam has been glued and blind-stitched to reduce water entry and have excellent durability. Seams and panels have be strategically designed with flexibility and mobility as the focus Making for a non restricting comfortable wetsuit.


A thin comfortable 4-way high stretch neoprene tape. Placed on all interior seams minimising water entry and maximising warmth retention.


Effortless to take on and off. Easy front entry mini slant zip system, which dislocates making it easier to open up the entry and get in to your suit with ease. No unnecessary bulky zipper, our mini zipper means no unbalanced restriction or area of tension. Securely held closed with a popper.


Rolled and stitched at the end of the cuff, with a liquid seal critical patch. An ergonomic fit preventing flushing. Unlike some wrist constructions ours will not rip even when wearing thick 7mm mitts.


Ergonomically designed chin warmer for the chilly days. Can be worn just as easily and comfortably up or down.


Lightweight, strong, abrasion resistant, high stretch neoprene knee panels. Superior comfort, flexibility and durability.


We source the most eco-conscious materials to help reduce our and your impact on the planet..


Petroleum Oil

Is expected to be depleted in next 50 years. Limestone, on the other hand, can be utilized for a wetsuit material semi-permanently.

Renewable Energy Sources

When making CR from limestone, it requires a lot of energy. To reduce environmental impact, most of the energy used comes from renewable energy sources such as hydroelectricity.

Longer Product Lifetime

As CR is excellent at performance such as weather resistance, CR wetsuits last longer.

One of the most eco-friendly ways to achieve sustainability is to use one product for a longer time in order to facilitate that the product has to last longer.

Plant Based Oil

Although certain amount of oil is needed to make soft rubber foam, YAMAMOTO stopped using petroleum-derived oil.

Instead, YAMAMOTO uses food-grade pure Canola oil, which is widely used as Tempura oil in Japan for sustainability and safety.

Ocean Pollution

Our beautiful blue sea is now in danger of being covered by marine debris.
It is estimated that there are 150 million tons of plastic waste in the ocean and at least 8 million tons are flowing in the ocean annually. Reference: WWF Japan WEB site "About marine plastic problems"

YAMAMOTO is working on recycled jersey materials to reduce pollution of the ocean and to let more people to be aware of this issue. It is estimated that the number of marina debris is going to exceeds the one of fish in 2050.

YAMAMOTO will continue to work on solutions to conserve our beautiful ocean.


  • Is a 4mm Hooded okay for UK Winters?

    Yes the 4mm hooded was designed for UK winters. Men and Women in Iceland, Norway and Scotland are doing full winters purely in the Lunasurf all 4mm hooded wetsuit. If you are prone to the cold you could always opt for the Lunasurf 5.4mm or 6.4mm hooded wetsuit.

  • Is my wetsuit fitting right?

    A wetsuit is supposed to be tight, skin tight. But not so tight that your range of motion is inhibited or restricts your breathing. The sleeves (if full-length) should fall at the wrist bone and the legs just above the ankle, and there should be no gaps, pockets, or rolls of neoprene. Wetsuits are meant to be form fitting. You don’t want loose folds of neoprene, or large pockets of air or water in your wetsuit.

  • Do Wetsuits Stretch with use?

    When you are first trying it on dry it is important to understand that once a wetsuit has been used a few times it will loosen up and feel more comfortable. With use the wetsuit will stretch to your body becoming form fitting.

  • What countries do you ship to?

    We offer FREE standard shipping worldwide on all wetsuits. You will also have the option to upgrade to premium DHL paid service for an express delivery.


    Yes we offer a 12 month warranty on materials and manufacturing, We do not cover misuse, fin cuts or any damage caused by hitting the reef.

  • Why do my wrists feel tight?

    We have designed our wetsuit wrists to prevent flushing or ripping (when wearing thick 7mm gloves/mitts). This means initially they could feel tight but they will loosen with use. You can also gently pull the wrists to widen/loosen.

  • I have long hair will it fit in the hood?

    Yes it will fit in the hood. The most comfortable way is with a low bun rather than on the top of the head.

  • How do i care for my wetsuit?

    Wash it out with clean, cold water after every surf. Hang dry from the waist try to avoid hanging from the shoulders on a hanger. Don't dry it out in direct sunlight, Don't machine wash/dry, Don't use detergents.

  • Can i return my wetsuit?

    Yes providing that the wetsuit has NOT been used or damaged. You are welcome to swap sizes if you didn't get it right first time. Return postage is your responsibility

  • How do wetsuits work?

    Lunasurf Wetsuits are awesome things, with today’s technology we can stay warm and have fun in the coldest of conditions. You can feel light, loose and warm unlike the wetsuits of yesteryear. Our wetsuits are 100% made using only the best Yamamoto Japanese limestone based neoprenes. That are then lined with a water/wind repelling buttery, stretchy lining that insulates you from the cold water water, air temps and winds. Your Wetsuit is made up of panels of Neoprene. Wetsuits are not designed to keep you entirely dry. A small amount of water gets trapped between your body and the neoprene. Your body temperature then heats up this small amount of water giving you a nice warm feeling. This is why finding the correct fitting Wetsuit is absolutely essential. Heat does eventually escape through the neoprene but very much like clothing the thicker the Neoprene the warmer you will be.