Visit Yamamoto Wetsuit Material Factory Part I

Yamamoto Wetsuit Materials Part I


At 7TILL8 Custom Wetsuits, we are constantly researching and learning about new materials to use in our custom fit wetsuits. For quality, Yamamoto sits at the top with their limestone-based neoprene. We want to learn more about this magical neoprene and so we're heading out to Japan to check out their production.


 Yamamoto Materials and Design


Yamamoto Limestone Neoprene Wetsuits


Late last year, Tommy Yamamoto (President and CEO) of Yamamoto Corp. visited our studio in Los Angeles and shared with us two new innovative materials to offer in our line of custom wetsuits. The first sample was the titanium alpha II neoprene, a titanium lined neoprene with PU coating he claimed to be proprietary. This process prevents corrosion and leaking of the metal alloys from neoprene. Tommy explained that the ocean is extremely corrosive and the special coating is needed to keep titanium adhered to neoprene. Yamamoto claims that the titanium lining on the neoprene increases blood flow and also acts as reflective material that insulates warmth far better than typical neoprene. So far the titanium alpha 2 material has worked out nicely in our custom prototype. More details on that wetsuit soon to come in march.

The second material offered was an infrared material that increases blood circulation and pushes out lactic acid build up. Tommy quickly explained to us the two different muscles in our body. Red muscles and white muscles. These two muscles have different functions in our body and white muscles pass lactic acid quickly promoting fast recovery. The material is supposed to help transfer lactic acid from red muscles into white muscles. Yamamoto has supplied only a small amount of the infrared material and testing has been challenging. We'll be grabbing more of this material to test properly when we're out in Japan.


Yamamoto Wetsuit Testing


Yamamoto has always provided detailed information about their wetsuit materials but as custom craftsmen, we'd like to find out how this magical neoprene gets created. 

We want to hear from you as well. Tell us what you would be interested in learning about Yamamoto. We will take down your questions and follow up with answers in our part II article after we visit the Yamamoto factory.

Leave your question in the comment field below or email us at


  • 7TILL8

    Great question John Costa, We will address your question regarding the titanium neoprene in our next post because we did ask Mr. Yamamoto about the properties.

    For the 3/4 zip the crosszip is a little more challenging to get into than the backzip because of the enclosed shoulder. If you have difficulty getting the wetsuit over your shoulders we would refrain from getting this style and instead choose the chest zip.

    The chest zip is a happy medium between the two. A great opening to climb into the wetsuit and also a high performance wetsuit with the zipper located in the front.

    Hope this helps and let us know how else we can help get you in a custom wetsuit!

  • John Costa

    What is the difference in thicknesses and insulation values of the standard neoprene and the titanium neoprene? Stretch also becomes part of the equation. Can someone who uses a 3/4 zip based on age and flexibility slip into a cross zip?

  • 7TILL8

    Hey Ron Beck, we actually do tape our seams internally with a flexible neoprene tape in all of our Yamamoto SAFA line of custom wetsuits and also our DEEP scuba diving custom wetsuit. We totally agree that not taping will create pinholes and that is why we made sure to include the hand taping in all of our surf wetsuits and the DEEP Dive suit.

    Check out the SAFA line here:

    Thanks for bringing that problem up and feel free to share more concerns!

  • Jakes

    What is the weight difference between traditional petroleum based neoprene wetsuits and yamamoto when wet? Surfing extremely cold water, weight is a huge issue when wearing lots of rubber.

  • Ron Beck

    Why aren’t you using a flexible tape to seal the wetsuits? Gluing and blind stitching always leaks. In a high end wetsuit, I expect it to have double taped or liquid neoprene sealed seams.

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