---
product_id: 578305156
title: "Boys' Junior Racing Jammer Powerskin St Next Knee Length Tech Suit Competitive Swimsuit"
brand: "arena"
price: "฿9499"
currency: THB
in_stock: true
reviews_count: 13
category: "Arena"
url: https://www.desertcart.co.th/products/578305156-boys-junior-racing-jammer-powerskin-st-next-knee-length-tech
store_origin: TH
region: Thailand
---

# lighter & less drag 60% recycled fabric FINA-approved durability Boys' Junior Racing Jammer Powerskin St Next Knee Length Tech Suit Competitive Swimsuit

**Brand:** arena
**Price:** ฿9499
**Availability:** ✅ In Stock

## Summary

> ♻️⚡ Swim Fast, Swim Green: The Future of Junior Racing Jammer Tech!

## Quick Answers

- **What is this?** Boys' Junior Racing Jammer Powerskin St Next Knee Length Tech Suit Competitive Swimsuit by arena
- **How much does it cost?** ฿9499 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/578305156-boys-junior-racing-jammer-powerskin-st-next-knee-length-tech)

## Best For

- arena enthusiasts

## Why This Product

- Trusted arena brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ergonomic Freedom:** Low-profile seams and T-back design ensure maximum mobility and comfort.
- • **Endurance Compression:** Long-lasting, tight fit enhances muscle support and power in every stroke.
- • **Eco-Performance Fusion:** Over 60% recycled yarns power a sustainable, high-speed swim experience.
- • **Streamlined Speed Tech:** Ultra-lightweight fabric reduces water absorption and drag for faster laps.
- • **Certified Competitive Edge:** World Aquatics (FINA) and USA Swimming 12&Under approved for official races.

## Overview

The Arena Boys Junior Racing Jammer Powerskin St Next is a knee-length competitive swimsuit crafted with over 60% recycled fabrics, delivering a lightweight, durable, and compressive fit. Designed for boys 12 and under, it features ergonomic low-profile seams and a T-back for optimal movement, while being officially approved by World Aquatics (FINA) and USA Swimming. This tech suit offers superior water resistance, muscle support, and sustainability, making it the go-to choice for young competitive swimmers aiming to excel with eco-conscious style.

## Description

desertcart.com : ARENA Powerskin ST Next Junior Boys' Racing Jammer Competition Swimsuit Sports Athletic Swim Team Championship Tech Suit, Aquamarine, Size 26 : Clothing, Shoes & Jewelry

Review: Good Jammers- hand wash - Very good jammers for 12U competition. I read a review stating the 12U compliant check box was coming off and they thought these were counterfeit. Not true. You do need to hand wash them though. Don’t run them through the machine with the rest of your clothes.
Review: Snug Fit, Streamlined Profile, Faster Performance - I'm amazed kids can squeeze into these tech suits, but they do, and definitely help improve speed performance. I ordered these in size 26 for a 12 year old; we returned them for a 28 (a very easy process) and that was a better fit. Pricey but worth it.

## Features

- Experience the phenomenal difference of the first ever FINA-approved racing jammer for boys made with recycled fabrics: lighter, more durable and faster
- Focused on sustainibility: over 60% of this sustainable fabric is made of recycled yarns; Please be advised, this jammer suit for racing is designed for a tight, compressive fit
- The jammer is significantly lighter which results in less water absorption and drag while the specific characteristics of the new fabric provide a longer-lasting compression and, consequently, greater durability
- The ergonomic construction with low profile seams ensures perfect fit and excellent freedom of movement; USA Swimming 12&Under approved
- Greater support and compression for increased power and a streamlined position in the water; World Aquatics (FINA) approved

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CJ9ZDJZB |
| ASIN  | B0DBR4Q4R3 |
| Age Range Description | Big Kid |
| Apparel Closure Type | Drawstring, Pull On |
| Back Style | T Back |
| Best Sellers Rank | #73,481 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #7 in Boys' Athletic Swimwear Jammers |
| Brand Name | ARENA |
| Color | Aquamarine |
| Customer Reviews | 4.2 4.2 out of 5 stars (257) |
| Date First Available  | November 30, 2022 |
| Department  | boys |
| Embellishment Feature | Logo, Piping |
| Fabric Type | 65%Polyamide, 35% Elastane |
| Fit Type | Snug |
| Global Trade Identification Number | 03468336920398 |
| Item Type Name | Swim Trunks |
| Item Weight | 65 Grams |
| Lining Description | 84% Polyamide, 16% Elastane |
| Manufacturer | ARENA |
| Manufacturer  | ARENA |
| Material Type | Polyamide, Elastane |
| Pattern | Solid |
| Product Care Instructions | Hand Wash Only |
| Rise Style | Mid Rise |
| Size | 26 |
| Sleeve Type | Sleeveless |
| Special Size Type | Standard |
| Strap Type | Non-Adjustable |
| Style Name | Junior Racing Jammer Powerskin St Next Knee Length Tech Suit Competitive Swimsuit |
| Style Number | 005878 |
| Swimwear Bottom Form | Jammer |
| Swimwear Form Type | Bottom Only |
| Ultraviolet Protection Factor | UPF 50+ |

## Images

![Boys' Junior Racing Jammer Powerskin St Next Knee Length Tech Suit Competitive Swimsuit - Image 1](https://m.media-amazon.com/images/I/61Oo81w-1NL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Jammers- hand wash
*by R***K on March 30, 2025*

Very good jammers for 12U competition. I read a review stating the 12U compliant check box was coming off and they thought these were counterfeit. Not true. You do need to hand wash them though. Don’t run them through the machine with the rest of your clothes.

### ⭐⭐⭐⭐⭐ Snug Fit, Streamlined Profile, Faster Performance
*by L***S on January 19, 2025*

I'm amazed kids can squeeze into these tech suits, but they do, and definitely help improve speed performance. I ordered these in size 26 for a 12 year old; we returned them for a 28 (a very easy process) and that was a better fit. Pricey but worth it.

### ⭐⭐⭐⭐⭐ The best
*by R***V on January 9, 2026*

The best

## Frequently Bought Together

- ARENA Boys Racing Jammer Powerskin St Next Knee Length Tech Swim Suit
- Arena Unisex Swim Goggle Case For Swimming Goggles, Protective Hardcover Carrying Case With Clip, Multiple Colors
- arena Unisex Cobra Ultra Swipe Racing Swim Goggles for Men & Women Anti-Fog Technology Dual Strap, Mirror/Non-Mirror Lens

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-02*