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    A Detailed Guide On Understanding The Thickness Of Swimming Wetsuits

    Writer: olivia smith
    olivia smith
    Jul 24, 2025
    2 min read
    swimming wetsuits

    It is significant to have the right-designed swimming wetsuit for an easy experience in the water. Especially when the water is cold, you need to be extra cautious about safety. 

    An accurately designed swimming wetsuit offers the right balance of buoyancy, flexibility, and warmth. 

    Moving on, let’s get some information on which swimming wetsuits is best for cold water.


    Why Do You Think The Thickness Of The Suit Matters?


    You can measure the thickness of the wetsuit in millimetres. It is mostly shown as two numbers, like 2/3MM. The first number gives you an idea of the thickness you can expect around the torso area. 


    The second number talks about flexibility, which you can expect around the legs and arms. 

    Thicker wetsuits may limit body movement, especially in the shoulder area.


    A Detailed Thickness Guide For Swimming Wetsuits Designed For Cold Water


    • Usually, you must choose 4/ 3 MM or 5/3 MM with suits when the water temperature is around 10 to 15°C. This is to ensure that you can move around comfortably in the water.

    • Secondly, you can select between 5/4 mm or 6/5 mm wetsuits. They come in a comprehensive design with inbuilt gloves and a hood. The idea is to keep the body warm when the water temperature is 6 to 10°C.

    • Thirdly, when the water temperature is less than 6°C, you need to choose swimming wetsuits with thermal linings ranging between 6 and 4 MM.


    Highlighting The Quality Of The Swimming, Wetsuits


    When it comes to quality neoprene materials like Yamamoto, it always stands out, offering a convenient warmth-to-flexibility ratio.

    That means you can keep your body warm in water while moving efficiently.


    Final Say 

    Selecting properly designed triathlon wetsuits depends on the individual's tolerance to the water, duration of the swimming water and, most importantly, the temperature of the water.

    Try open-water wetsuits or training swimwear, which will easily match the water and offer more enjoyable and safer swimming conditions.

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