Open Back vs Closed Back Racing Suits
When women and girls choose a racing kneesuit, the back style is usually the biggest decision after size. It changes how the suit feels, how it compresses and how easy it is to get on. This comparison is part of our racing and competition guides.
How do open and closed back suits compare?
Open Back vs Closed Back
| Open back | Closed back | |
|---|---|---|
| Compression | Strong on hips and thighs, less on upper back | More through the core and upper back |
| Shoulder freedom | Greater | Slightly less |
| Getting it on | Often easier | Can take longer |
| Feel | Lighter, less restrictive | Wrapped, supported |
| Often preferred by | Freestylers, butterflyers, swimmers who dislike restriction | Breaststrokers and swimmers wanting core support |
Who suits an open back racing suit?
Swimmers who want maximum shoulder freedom and a lighter feel, and those who find closed backs restrictive across the chest. Open backs are also popular with younger swimmers moving into race suits, as they're often easier to get on. Our women's racing kneesuits include both styles across the main ranges.
Who suits a closed back racing suit?
Swimmers who like the feeling of support through the core and back, and those who want compression to hold their body position deep into a race. Many breaststrokers prefer closed backs. Closed back suits can take a little longer to get on, so allow time on gala day.
The mistake: Choosing a back style because a team-mate or a top swimmer wears it.
What happens: Every swimmer's build and stroke is different. A suit that feels perfect on one swimmer can feel restrictive or unsupportive on another.
How to avoid it: Try both styles if you can, or describe your stroke and what you like in a suit to our swimwear experts, who fit racing kneesuits every week.
Does back style change sizing?
Sizing follows each brand's chart, but fit can feel different. A closed back can feel tighter across the chest and shoulders; an open back puts more emphasis on the hips and straps. If you're between sizes, our swimwear experts can help. Our guide on putting on a race suit applies to both styles.
WHICH BACK FOR WHICH SWIMMER?
WHICH BACK FOR WHICH SWIMMER?Freestyle and fly
Freestyle and flyOften open back, for shoulder freedom.
Breaststroke
BreaststrokeOften closed back, for core support through the kick.
First race suit
First race suitOften open back, as it's easier to get on.
What about training suits?
Training kneesuits come in a wider variety of back styles, and the same principles apply. If you're comparing training and racing kneesuits, see kneesuit vs racing kneesuit. Our women's racing swimwear covers suits, goggles and caps for race day. Younger swimmers should check our kids swimwear guide before buying.
Why Buy Racing Kneesuits From Allens Swimwear
We fit open and closed back racing kneesuits every week of the season.
Written by a swimwear specialist at Allens Swimwear, 50 years of expert fitting. Updated 13 October 2026.
Frequently Asked Questions
Is an open back or closed back racing suit faster?
Neither is faster for everyone. The best suit is the one that fits your build and stroke and feels right. Closed backs give more core compression; open backs give more shoulder freedom.
Are open back race suits easier to put on?
Often, yes. Open backs tend to be slightly easier to get on than closed backs, which is one reason they're popular for a first race suit.
Which back style is best for breaststroke?
Many breaststrokers prefer closed back suits for the core support, but fit and comfort matter most. Try both if you can.
Does a closed back suit restrict breathing?
It shouldn't if it fits correctly. A closed back feels firmer across the chest, but you should still be able to breathe deeply.
Can girls wear closed back race suits?
Yes, junior and adult race suits come in both styles. Check junior swimwear rules for your meets before buying a technical suit.