You’ve trained all season and are about to compete in your first meet, but last year’s swim trunks have gone loose around the waist and no longer fit properly. It’s a situation we know well from helping swimmers of all ages, from boys in youth clubs to adults who swim masters. Over the years, we’ve helped thousands of swimmers find competition swim trunks that fit right from the very first length. Right now, we’re celebrating Black Month with up to 75% off selected items, so it’s a great time to replace your worn-out trunks. Browse our selection of competition swim trunks and find a pair that’s right for you.

What size competition swim trunks should you choose?

Competition swim trunks need to fit snugly to work properly, which makes sizing more important than with regular swim trunks. During Black Month, you can find competition swim trunks at great prices. Here are the things we check when helping customers choose the right size:

1. Size guide: Follow the manufacturer’s size guide and use your own measurements. Don’t simply choose the size you usually wear in everyday swimwear.
2. Waist: The trunks should stay in place without digging in. Try doing a deep squat and check that they don’t shift.
3. Leg openings: They shouldn’t roll up or dig into your thighs, and the fabric should lie close against your body without any wrinkles.
4. Boys: Don’t buy a size too big so they can grow into the trunks. If they’re too big, they’ll flap in the water. Browse our selection of competition swim trunks for boys.

Check your training trunks during Black Week

In the week leading up to Black Friday, we celebrate Black Week, making it a great time to check your trunks. Has the fabric become thin, or has the elastic band in the waist gone slack after spending many hours in chlorinated water? Then you can replace them at the lowest prices of the year. Many swimmers have two pairs: one for everyday training and one for meets, so their expensive competition trunks don’t wear out unnecessarily. If you also need a new swimsuit, browse our selection of competition swimsuits.

Competition swim trunks from Arena, Speedo, TYR and Watery on Black Friday

Black Friday falls on the Friday at the end of November and is the highlight of our entire sale period. Here you’ll find competition swim trunks for men and boys, including Arena ST NEXT and Carbon Air 2, Speedo LZR Pure Intent 2.0 and LZR Pure Valor 2.0, TYR Venzo and Invictus, as well as Watery Rapidskin 2.0. With up to 75% off selected items, you can get one pair for training and another for meets. Don’t forget a wet/dry bag for wet swimwear, so your wet trunks don’t dampen the rest of your bag.

Try your trunks at home with our Black Month Guarantee

You don’t have to wait to buy to make sure you get the best price. With our Black Month Guarantee, we’ll refund the difference as a Watery gift card if we lower the price of your trunks before Black Month ends. That means you can order now and try the size at home, at your own pace. If you find the same trunks at a lower price from another retailer, we’ll match it too.

Get new competition swim trunks in time for your next meet on Cyber Monday

On the Monday after Black Friday, we wrap up our sale period with Cyber Monday. It’s your last chance to buy competition swim trunks at the lowest prices of the year before prices return to normal. If you didn’t get around to deciding over the weekend, there’s still time today. If you’re unsure about the size, our customer service team will be happy to help, and we’ll make sure they’re delivered quickly so your trunks are ready for your next training session.