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The Best Swim Caps for Swimmers

9 Best Swim Caps for Swimmers in 2022

Looking for the best swim cap for training and competition? Here’s your ultimate guide to picking out the best swimming cap for you.

In this comprehensive buyer’s guide to the best swim caps we are going to outline our top picks for training caps, competition caps, the best cap for long hair, and also break down what kind of caps are best for your particular kind of swimming.

But first, a quick public service announcement about why you should always wear a swim cap when in the pool.

Why You Wear a Swim Cap at the Pool

Here’s a fun fact that might not make much sense to you: Swim caps are not meant for keeping your hair dry.

I know, I know—so what the chlorinated heck is the point of wearing one if not to keep our hair dry?

Well, there are a few reasons why you should wear a swim cap when you go swimming:

  • Keeps your hair out of your face. Having your hair slop down in front of your goggles, blinding you mid-length during the middle of your swim workout, is no one’s idea of a good time. Think of your swim cap as a hair management tool.
  • Keeps hair out of the pool. A little talked about benefit of swim caps is that it keeps your hair from proliferating into the common water of the pool. More times than I can count I’ve seen a hairball come slowly flying at me through the water like an asteroid in space while swimming. Caps keep your hair from littering the pool and prevent the pool filter from getting clogged.
  • Protects your hair from chlorine. Although your cap doesn’t keep your hair perfectly dry (unless you’re the head-up breaststroker type of swimmer), it does keep a majority of the chlorine-soaked water from coming into contact with your hair. Chlorine, being a solvent, is not overly awesome for hair (which is why you should also be using a good swimmer’s shampoo to fully rinse the chlorine out of your hairdo). Caps reduce the amount of chlorinated water your hair is exposed to.
  • Makes you a little more hydrodynamic in the water. This is most relevant to the competition swimmer—swim caps decrease a little bit of drag and resistance in the water. Domed silicone caps, as covered in the competition caps section, provide a wrinkle-free cap experience that minimizes your drag profile in the water.
  • In the case of neoprene swim caps, which we review more fully here, they help keep your head nice and warm in cold, open water. Pairing swim caps (one latex, one silicone) is another way for swimmers to keep warm.

Best Swimming Caps Guide

Okay, with that behind us, let’s get into our list of best swimming caps!


Best Training Swim Caps

These swim caps are ideal for your day-to-day use in the pool.

From your weekend warrior swimmer to the this-sport-is-my-complete-life swimmer, these swim caps will survive the long bouts of training in the water with you.

Arena Classic Silicone Cap

The Arena Classic silicone swim cap is my go-to training cap.

I have purchased just three of these in the past four years and they have survived twice-daily use with ease. This cap isn’t as thick as the Speedo silicone cap that ranks as our top competition swim cap, making it breathable while also retaining the durability aspects of silicone.

(Silicone is the most durable of materials used in the construction of swim gear, most notably with caps and swim goggles.)

Arena Classic Silicone Cap

Speedo Silicone Solid Swim Cap

These swim caps are cheap, and they are made by Speedo, so you know they are going to be designed for actual swimming.

Additionally, they come in about a dozen colors, giving your plenty of options for how you want to stick out in the pool.

Here are just two of them:

Speedo Silicone Solid Swim Cap - Black

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Speedo Silicone Solid Swim Cap - Blue

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Speedo Silicone Long Hair Swim Cap (**Best Training Swim Cap for Long Hair**)

For you swimmers with long hair Speedo makes a version of their Silicone Solid cap that is made just for you. Being someone that doesn’t suffer from this particular problem I sourced out some of my long-haired swimmer friends for their go-to cap and this one was consistently at the top of their list.

[Looking for more long hair swim caps? See our detailed reviews of the best swimming caps for long hair here.]

They praised the fact that the cap didn’t snag their hair when pulling it on or off, and that their was enough space in the cap to accommodate their hair while also providing a secure fit that kept drag to a minimum.

Speedo Silicone Long Hair Swim Cap

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Speedo Solid Latex Swim Cap

Most of the swim caps that are on this list are silicone. While silicone caps are more resilient and even more hydrodynamic because of their wrinkle-free fit, they are also more expensive than your traditional latex swim cap.

The big difference I have always noticed between a latex and silicone cap is that the former is more breathable, making them ideal for training, especially you poor swimmers who train in a warm pool.

Speedo’s basic latex swim cap retails for around $3-6, making it dirt cheap and a good option for swimmers who get tend to overheat when they train.

Speedo Solid Latex Swim Cap

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TYR Lycra Swim Cap

The TYR Lycra Swim Caps are a comfortable and durable swim cap that are perfectly suited for the more casual and recreational swimmer (also ideal for a base cap if you feel like wearing two swim caps at the pool—more on that later!).

The caps are made of 80% recycled nylon and 20% Lycra. Made for adults and older kids, the caps come in five different colors and are a one-size fits all.

If you’re looking for a swim cap that keeps your head cool, and you don’t mind getting your hair a little wet, and your goals at the pool are a little less Olympics and a little more recreation, the TYR Lycra Swim Cap is an excellent choice.

TYR Lycra Swim Cap


Best Competition Swim Caps

The workouts have been completed, and it’s time to get up on the starting block and throw down on your personal best times. Now you just need something to cover your dome with.

Here’s our selection of the best racing caps for swimmers.

Speedo Silicone Aqua V Swim Cap

This is my go-to racing cap. I’ve purchased two since 2013 (I lost the first one when moving) and they have been excellent all the way through. After having used them at multiple meets, countless meet warm-ups and even some bouts of training they have still completely retained their shape and form.

The one thing I would note is that wearing a cap like this that is made of thicker silicone than your typical training silicone cap is that your head will get warmer much faster. I learned this first-hand when wearing the cap at a local YMCA where the pool temperature runs a little warmer.

The cap sits comfortably on your head, and because it is domed-shaped it is designed to not have any wrinkles on your head, reducing drag in the water.

Like the Speedo Silicone Solid it comes in a variety of colors (not quite as many—“just” five different shades).

Another note, similar to how you need to size down with competition suits this cap runs a little smaller than the sizing you would traditionally find in silicone and latex caps. Speedo themselves recommends sizing up if in doubt.

Speedo Silicone Aqua V Swim Cap

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MP Michael Phelps X-O Competition Cap

Along with his MP Michael Phelps Xceed goggles, the X-O cap is part of the kit that Phelps wore during his last two years of competition, most notably in Rio at the Olympics during his swan song in 2016.

Like the Speedo Aqua V cap, it’s a domed cap, meaning that there won’t be any wrinkles or extra material when you stretch it over your head.

Best Competition Swim Caps

The cap provides a comfortable fit while also minimizing drag.

The cap is made of 100% silicone and is FINA-approved. It’s also Phelps approved, for what that’s worth.

MP Michael Phelps Racing Swim Cap

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Speedo FS3 Competition Swim Cap

The Speedo Fastskin3 cap is designed as part of the Fastskin “system” that Speedo put together after the drunken tech suit storm of the late 2000s. Although it is advertised as part of a “system” it doesn’t actually work in concert with the Fastskin goggles and Fastskin tech suits. (It’s not like a Fastskin3 cap doesn’t somehow “work” with an Arena racing suit, for instance.)

With Speedo sponsoring a wide amount of elite swimmers, this cap was everywhere in Tokyo at the Olympics in 2016. From Florent Manaudou, Cam McEvoy to Pernille Blume, this cap was on the heads of a lot of swimmers that made it to the medal podium.

There are some interesting features to this cap that are kind of neat-o:

It features a marker on the cap that allows you to align them up with the goggles that you are wearing. In other words, it helps you guide the cap onto your head so that the cap is straight and not left-of-center (like my swim caps always seem to end up).

For swimmers with longer hair, Speedo recommends adding an “under” cap—they’ve called it their “Fastskin3 Hair Management System”, which is just a fancy way of saying wear a spandex or elastane based cap underneath it to help manage all your hair.

The Speedo Fastskin3 competition cap is available in a variety of colors over at SwimOutlet.com.

Speedo FS3 Competition Swim Cap

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Arena Domed 3D Ultra Competition Swim Cap

Arena has put together a heavyweight list of athletes on their sponsored squad that includes Chad le Clos, Tom Shields, and world breaststroke super-champion Adam Peaty.

Their racing cap, the Arena Domed 3D Ultra, has a similar look and feel to the competition caps listed previously.

Arena Domed 3D Competition Swim Cap

The cap is made of 100% silicone and features a slick interior so that the cap doesn’t snag and rip at your hair when you pull it off after you destroy your personal best times on race day.

Arena Domed 3D Ultra Competition Swim Cap

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Swim Caps – FAQ and Buying Guide

Swim caps come in a wide variety of sizes, shapes, colors, and materials.

The type of cap you choose ultimately comes down to what is comfortable and your goals in the water.

Before throwing down your hard-earned cash for your next swim cap, here is everything you need to know about them.

Latex vs. Silicone Swim Caps

Swimming caps come in a variety of formats, but the two most common materials are latex and silicone caps.

Latex swim caps are cheaper, more breathable, but less durable.

Latex caps provide an excellent range of stretchiness, making them ideal for swimmers with just about every shape of head.

They are also “stickier” to the head and less prone to sliding around on your head while swimming.

Latex caps are an excellent swim training cap for both experienced and recreational lap swimmers.

Silicone caps are more expensive, last longer, and keep your head warm.

Silicone caps are also more hydrodynamic because they have less wrinkles. Latex caps typically bunch up at the back or front, while silicone caps fit smoothly.

These caps are also best suited for swimmers with long hair as they won’t tug or pull on your hair when putting them on. The added thickness is also perfect for colder pools and open water swimming.

While silicone caps are a little pricier, they are excellent racing caps for their hydrodynamic properties, for swimmers with longer hair, and cold water swimming.

What about Lycra Swim Caps?

While latex and silicone swim caps get most of the attention, there are also plenty of excellent Lycra swim caps on the market.

Lycra caps are made of a mixture of Lycra and polyester (but we call ‘em Lycra to keep things easy).

Recreational and casual swimmers will enjoy the comfort and fit of this kind of cap, as they are less constrictive on the head and because they are more permeable than latex and silicone caps, they also keep your head cool in warmer pools.

Lycra caps are well-known for staying on when your hair is already wet, providing sun protection in outdoor pools (Lycra caps are typically rated SPF 50+), and not yanking on your hair when putting it on and taking it off.

Lycra caps do absorb more water than silicone and latex caps, and if you are looking for a cap that will keep your hair dry-ish, Lycra is not the way to go, as they do allow for some water absorption into the hair when swimming.

Why do Olympic swimmers wear two swim caps?

If you watched the most recent edition of the summer Olympics, you likely saw some of your favorite swimmers wearing two swimming caps.

There are two main reasons swimmers do this.

best swimming caps

First, wearing two caps is a way to keep your swim goggles securely planted on your face and head when you dive off of the blocks.

Ask any swimmer: their biggest race-day nightmare is the goggles coming off or filling up with water when they dive into the water.

Doubling up on swim caps—and placing the goggle straps under the second cap—is a way to “lock” goggles into place so that swimmers can race with confidence.

And secondly, the two layers of swim caps have a hydrodynamic purpose as well.

Swimmers who double up on caps generally use a latex swim cap as a “base” and the silicone cap on top.

While latex caps stick to the head better than silicone caps, they wrinkle and can cause a tiny bit of added resistance and drag in the water.

Silicone caps are sleeker and provide less friction. They are also awesome at smoothing out the lumps and bumps from goggles, the latex cap, and even the natural contours of the skull.

In sum: the base layer is a latex cap that doesn’t slide around, and the silicone cap smooths out the combination.

When races are divided by hundredths of a second, every little advantage matters!

Lastly, wearing two swim caps is a way to keep your head warm when swimming in colder pools (or in open water).

Because silicone caps are thicker, they are great for retaining heat, particularly when paired with a second cap.

Can swim caps make swimming safer?

Swim caps are a quick and easy way to increase safety in the water, for both children and adults.

Drowning is one of the leading causes of accidental death for children, with the CDC listing drowning as the second leading cause of death behind motor vehicle accidents.

While nothing replaces proper supervision and swimming skills, a swim cap can increase safety by making swimmers easier to spot in the water. Swim caps also keep hair out of the eyes and mouth so that we can properly see and breathe in the water.

Swimmers with longer hair benefit from using a cap as it keeps hair from getting snagged and tangled on other swimmers, lane ropes, goggles, and so on.

More experienced swimmers also reap the safety benefits of wearing a swim cap, particularly open water swimmers. A bright swim cap keeps you visible to other swimmers and boaters.


More Swim Gear Guides:

8 Best Goggles for Swimming. Confused about what kind of goggles to get? Here’s a breakdown of the best swimming goggles for fast swimming.

7 Best Swim Caps for Toddlers and Children. Swim caps protect your toddler or child’s hair from harsh pool chemicals, help them stay safe in the pool, and keep their hair out of the pool. Here are our top picks for the best swimming caps for toddlers and children.

5 Best Earplugs for Swimming. Want to keep your ear-holes nice and dry when you are at the pool? You are in luck–use my 30+ years of experience wearing earplugs to find the best pair of earplugs for swimming laps.

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About Olivier Poirier-Leroy

Olivier Poirier-Leroy is a former national level swimmer and the author of the books YourSwimBook and Conquer the Pool. He writes all things high-performance swimming, and his articles were read over 3 million times last year. His work has appeared on USA Swimming, SwimSwam, STACK, NBC Universal, and more. He's also kinda tall and can be found on Twitter.

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