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Arena competition swim trunks for men - ST 2.0 - Dark blue


Pre-order In stock In stock Only 2 in stock Discontinued


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22 UK
In stock Only 0 in stock Discontinued
24 UK
In stock Only 2 in stock Sold out - notify me
26 UK
In stock Only 0 in stock Discontinued
28 UK
In stock Only 0 in stock Discontinued
30 UK
In stock Only 0 in stock Discontinued
32 UK
In stock Only 0 in stock Discontinued
34 UK
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

NB! This is a pre-order with delivery in week false (01/01 - 08/01)

We have already confirmed that the delivery of this item is on its way to our warehouse. Read more below.

🚚 Scheduled delivery time: Week false (01/01 - 08/01)

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However, please be aware that this date is indicative, but in 98% of cases, it is met. We cannot specify whether it will be at beginning or the end of the respective week. If this changes for your order, we will always proactively inform you of the new expected delivery date via email.

💰 Free shipping on all pre-orders regardless of the amount

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If you order this product as a pre-order, you will receive free delivery with the cheapest delivery method regardless of the order amount. This also applies to any other other purchased items in the same order.

🖇️ Order will be shipped together with the pre-ordered item

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If you order other products on the same order along with this pre-ordered item, then your entire order will first be shipped together at the same time as the pre.ordered item, which is in week false (01/01 - 08/01).

🔄 365-day return policy starts once when we dispatch the order.

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We will charge the full amount for your order, including the pre-order item and any other purchased items, 2 days after the order is completed. We do this to avoid additional late payment fees. You can still cancel and get a refund for the pre-order item and/or the entire order until dispatch - it just requires a call, a chat, or an email.

NB! Pre-order for week false (01/01 - 08/01)
Get notified when back in stock

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Price including VAT etc.

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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. 

Trustpilot 4.7 / 5 ⭐⭐⭐⭐⭐ (+650.000)

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.

Contact us 7 AM - 9 PM all weekdays

We love to help. That's why we're available Monday-Friday from 7 AM to 9 PM. In the weekend between 9 AM to 3 PM. See contact options here.


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 14 reviews
Valeriu Cherdivara

Arena competition pants for men - ST NEXT - Black

Adrian Wibrand
Competition swimming trunks

Very good

Gunilla Larsson
Arena competition trousers

Good fit, stylish

Allan Thorsen

Arena SELECT BATHERS FOR MEN - ST 2.0 - Dark red

Allan Thorsen

Arena men's competition trunks - ST 2.0 - Dark red

Sonja H.
Good for the price

Cheap, durable and chlorine resistant

Tine L.
Super good

Good and comfortable to wear. Works the way they should.

Carsten T.
Good begins event pants

Sitting well and is fine water resistant.

Urban B.
Extremely good fit!

I followed Watery's guidance on choosing a size less than usual and am really fond of my new arena.

Julie P.
Super satisfied swimmer

Fine pants and good service. Fast delivery

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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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