Arena competition swim trunks for boys - ST 2.0 - Red


In stock Only 3 in stock Discontinued


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6-7 years / 116 cm
In stock Only 3 in stock Sold out - notify me
8-9 years / 128 cm
In stock Only 3 in stock Sold out - notify me
10-11 years / 140 cm
In stock Only 0 in stock Discontinued
12-13 years / 152 cm
In stock Only 0 in stock Discontinued


1 pcs. Buy more and save
Why? Our warehouse is chaos-organized. The same sizes/colors are not placed in the same location. We save money in our handling when we only have to pick from one location - that's why the quantity discount only applies to the same size and color. Consider it a bonus that we share the savings with you.

Only applies to the same size and color

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Free delivery over €79 (under = €4)

Get free delivery to a parcel shop with An Post on orders over 79€. Below that, delivery costs from just 4€. Delivery is 3-5 days for orders placed before 9 PM

365 days free exchange

We (also) hate stress. That's why you have 365 days to exchange/get a voucher. And it's completely free through our returns system. For regular returns, you have a full 30 days. 

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We have helped more than 650,000 people with their equipment and swimwear. They have given a Trustpilot score of 4.7 out of 5.0. They all chose Watery because of these unique benefits.

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The perfect and by far the best-selling first-time competition swim trunks for new competitive swimmers. 100% FINA approved = Can be swum in at international swim events.

Made for events, they are equipped with the special water-repellent material that mimics the water resistance in the water.

Provides good support for the muscles by not being too tight and still allowing you to move freely.

Easy size guide in relation to height:

- Size 6-7 years = 116 cm tall
- Size 8-9 years = 128 cm tall
- Size 10-11 years = 140 cm tall
- Size 12-13 years = 152 cm tall

With these on, your boy will feel like he's flying through the water compared to the non-competitive swim trunks he's probably been swimming in. And most likely break a few new personal bests in the process.

Coupled with this pretty cool red design, your boy will stand out like a sore thumb at the start of the next competition.

Features / benefits of Arena ST Junior 2.0 competition swim trunks - Red:
- Optimal muscle support and range of motion
- Helps the body in the optimal hydrodynamic position
- Is 100% FINA approved
- Made from 71% Polyamide and 29% Elastane, which provides great durability along with the freedom to move in them.

Basically, these are the best entry-level competition swim trunks on the market for younger boys and swimmers, where the boy will still experience wearing a special kind that tightens a bit and gives him less water resistance in the water.

To ensure that the unique swim trunks are treated correctly, make sure:
- Immediately after the last swim of the day, wash them in as cold water as possible
- Don't wring them dry, instead hang them up after use (not in the sun)
- Don't leave them wet in a bag for long periods of time
- Do not wash in a washing machine or tumble dryer.
- When putting them on, do not use your fingertips as nails pierce through the relatively thin fabric.

This Competition Swim Trunk from Arena has been voted Best At Any Price for brand new swimmers + Best At Price for swimmers with 2-3 swim sessions per week in the Competition Swim Trunks category.

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Arena ST 2.0:
- Like regular swim trunks, just water resistant = beginner swim trunks.

Read more about the awarding of Arena ST 2.0 as Best Whatever Price for brand new swimmers + Best For Price for swimmers with 2-3 swim sessions per week in the Competition Swim Trunks category here.

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Customer Reviews

Based on 7 reviews
Thomas Herrmann
Very good shipping worked well, was completely surprised, the site works flawlessly, prices ...

Very good shipping has top

Anne S.
Good fit

They live up to the description and are size equivalent

Delicious board

We were out and standing on the board for the first time today. It certainly lives up to expectations and we are super happy with it. We are beginners inside for & quot

Kenneth M.
Very good product

Really good competition bathing suits - great satisfaction from here.

Berit E.
Super good fit, comfortable

The son is well pleased with the new swimming pants.

Diana N.
Good competition pants

Good and cheap competition pants for the new competitive swimmer

Thim P.
Fast delivery and everything OK!

Fast delivery and everything OK!

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Do you have questions about products, recommendations, or returns? Click here to ask our product experts and customer service between 7 AM to 9 PM on weekdays. We look forward to hearing from you.

Free exchange / easy returns

Yes, that's right. Exchange is completely free when using our fast return system - without the need for a printer. Click here to learn more. Regular returns cost €5.

Free 3-5 days shipping over €79

Delivery is on us when you purchase for over €79. Below that threshold, it costs starting from €4. We deliver with An Post.

In doubt? Check out our recommendations.

Not sure if this is the right product for you? Click here to see our detailed product recommendations. Handpicked by our founder.

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