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  • Nov

    The Ins and Outs of Open Water Swim Caps

    Swim caps make perfect stocking stuffers! Easy to wrap, affordable with styles and designs for all types of swimmers. We asked our in-house triathlon expert Jarrod Shoemaker to break down the different swim cap options for open water swimmers.

    By Jarrod Shoemaker, 2008 Olympic triathlete

    There are quite a few types of swim caps on the market, and quite a few different varieties. This article specifically focuses on which types of caps are good for open water swimming.

    We can rule out a few caps, such as kids fun swim caps and lycra caps (Unless you are racing lifeguard races in which case lycra caps are the norm). Lycra caps allow water to pass through them easily, they are not bad per se, but do not keep your hair dry and are not as fast as latex, silicone or neoprene caps.

    Most races use latex caps as they are cheaper for the races to produce, so if you are racing triathlons or open water swimming event, you most likely have used a latex cap. Most competitive swimmers, like those at the Olympics are using silicone caps, since they are a bit more sturdy, and more hydrodynamic. I have a couple latex caps, silicone caps and neoprene caps that I take with me to open water swims or races so I can use the correct cap depending on water temperature.


    Latex swim caps are not quite as durable as silicone caps, and are also a bit thinner. Latex caps can get a bit sticky as their lives wear on, unless you put baby powder into them to dry them out. They tend to break down a bit after many uses and are a bit sticker, tending to pull hair, if put on incorrectly. 

    If you are swimming in a warmer pool or body of water, latex is better to wear as the material is thinner allowing more heat to dissipate through your head.


    - Thinner material
    - Allows more heat transfer, better in warmer open water
    - Moderate usage before caps will deteriorate 



    Silicone caps are a bit thicker, and they are very good for open water swimming in slightly colder water. Since they are a bit thicker, they hold the heat in your head more. 

    Personally, I prefer silicone caps as they seem to last longer, and do not get as sticky after many uses as a latex cap will.


    - Easy to put on and feel on the head
    - Thicker material
    - Thicker material keeps heat in, good for cooler open water
    - Long usage before caps will deteriorate



    Neoprene caps are made specifically for swimming in colder water. They are very thick and made from the same material as wetsuits. Some neoprene caps come with a chin strap to fully cover your ears as well. Typically you will only wear a neoprene cap when water temperatures drop below 62 degrees. 

    Be sure to try on a neoprene cap before you race in it, as they are much tighter than other caps and can feel restrictive.


    - Very thick material
    - For cold water
    - Can feel very restrictive and tight




    Latex and Silicone caps come in some fun styles and colors. When swimming open water it is best to wear a bright colored cap so boaters, jet skiers, swimmers or float planes can see you (yes I have almost had a plane land on me in a lake in Florida even with a bright orange cap on!).

    Email Address Invalid. Please enter an email address in the format: xx@yy.zz
    6 years ago.
    What brand of Latex Swim Cap is super hot pink for visibility in Open Water (they do vary). We need to order for our masters team's open water workouts. If anyone knows, please tell me!
    6 years ago.
    Hi Jen,

    Our Sporti brand makes a super hot pink latex cap for just $1.45:

    And a few other brands also carry hot pink. You can have a look at other styles here:

    I hope you find something that you like. Have a wonderful day!
    Cold Water Swimmer
    6 years ago.
    The chin strap bubble crepe swim caps are great for open water swimming by themselves and when worn over a inner silicon or latex cap. There warm comfortable and easy to put on. Much easier to put a latex open water race cap over the bubble cap too. The bubble caps come in many bright colors and head sizes if you look around. Swim Outlet has a great one in a size that fits most swimmers and can be worn over a silicon cap

    These caps are worn by several San Franciscio Bay swimmers in water thats not much more the 62 F year round. And goes down to low 50's in mid winter. They are also a cap that can be worn for the English Channel and Catalina Channel record solo swims and have been by many in those events. For those with large heads they may be one cap that fits
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