Why Sumarpo choose 100% limestone neoprene?

SUMARPO 100% limestone neoprene wetsuit

What is Neoprene?

Also known as Chloroprene Rubber (CR), modern versions of Neoprene, in general, have erased every trace of the dirty petroleum-based additives - a centerpiece of environmental pollution. However, when distributors like Sumarpo favor production from limestone calcium carbonate, it accelerates the benefits further. Our manufacturer deploys the latter to create CR chips, eventually oven-melted and filtered through a benzine-free chemical process. 


Next, they infuse it with air bubbles when still in melted form, then bake it until it develops into a foam-like hardened substance. From there, the process follows a routine of cutting Neoprene foam blocks into thicknesses visualized for the wetsuits, starting with 0.4mm, ending with 10mm, and everything in between.


Is limestone neoprene better than natural rubber (NR)?

After all, the keyword embedded in NR is "natural." So, doesn't that carry some weight as a valid competitor to limestone neoprene? It's one of the first questions raised when CR enters the conversation, and it's a fair one. The answer is this: In theory, yes, it does, in practice - no. Here’s why:

● Rubber in its raw form lacks critical defenses against wear and tear and, in many ways, falls short of modern demands for eco-friendliness.

● Moreover, when swimmers enter the water, they expect all the assistance their wetsuits can deliver to help them go faster for longer. 


Being objective, pure rubber, once chemically treated throughout, can come up with many of the required features, but here are the four primary disadvantages:

1. It takes a substantial amount of accelerators, anti-aging compounds, and anti-ozone agents to get NR to reach the competitive quality level intimated above.

2. And that's only if the producer follows all the latest compliances for aiding a green environment. The fly in the ointment is that numerous wetsuit distributors fail to ensure their suppliers avoid applying eco-harmful additives.

3. It seems that piling on so many chemicals frequently creates allergies, which is only discovered after buying the wetsuit. We don't have to tell you that invariably results in user frustration and writing it off as a bad investment.

4. Moreover, even when NR oversight is fully functional, the science and technical expertise in the manufacturing process doesn't come cheaply. Our view is that it reflects an unaffordable price to the triathlete in many cases.


In every department, limestone neoprene beats or matches alternatives.

Sumarpo’s Aeroatom NANO-coated limestone CR is a wonder fabric in every sense of the word. It knocks the socks off petroleum-based rubber, of course, but even the natural rubber neoprene options can't stand up to it. The one massive environmental benefit arises because limestone CR contains almost no additives compared to NR. As a result, the Sumarpo wetsuits have the lowest carbon footprint of any contemporary brand on the market today. 


Not only that, limestone CR provides performance-centric benefits that elite triathletes rave about. You’ll come as close to shark-like agility as you’ll ever get with a selected “second skin” from the Sumarpo range. In short, limestone is the wetsuit disruptor that's reshaping the way competitors approach the swim leg in open water.


Sumarpo owes its premium brand wetsuits to seeing things through to the last detail.

Deciding to back limestone neoprene as the signature wetsuit material of the future is a big first step, but it's not the only step. The product that leaves the store has to give its owner unsurpassed support when the chips are down, and the race is on. Consider the following features and benefits that come your way every time you get ready to race the Sumarpo wetsuit way:

● The air bubbles (mentioned above) give you significantly better buoyancy (by up to 30%), that's an energy saver and a mainstay of athletes' stamina over a grueling competition.

● Neoprene’s natural lightweight qualities merge with Sumarpo’s unique press mold collar and full shoulder wrap to deliver maximum back support and water-gliding attributes.

● Distributing the Sumarpo CR with a limitless 360-degree flexible inner lining to all the right places of the body vitally depends on the wetsuit design. The latter effectively addresses:

  ○ Physiological restrictions in the limbs interfering with smooth stroking and kicking in the water.

  ○ Heat retention and maximum swimming comfort. Staying warm through the swim and coming out of the water sets the tone for all legs.

  ○ Sumarpo ensures that the single-lined limestone neoprene covers the outside of the chest and back panels, the best possible protection against windchill.

● Also, it significantly cuts down skin chafing and prevents water leakage:

  ○ Heat-welded CR tape seals the inside of the suit, eliminating the need for excess glue - the leading cause of skin irritation.

  ○ Waterproof-tested liquid Neoprene applied over the outside seals keeps your body on the inside dry and comfortable. 


Sumarpo is at the cutting edge of market demands for high-performance wetsuits affordable to most triathletes. The dual responsibility of eco-friendly properties throughout the fabrication process and a design that optimizes stamina and speed are essential considerations. The narrative indicates that limestone CR blends exceptionally well with biodegradable adhesives to complete the eco-friendly properties. It's the cornerstone material of Sumarpo's mission and vision to meet the most prominent triathlon needs, thus consolidating a memorable customer experience.