---
product_id: 1238835
title: "Boys Durafast One Jammer Swimsuit"
brand: "tyr"
price: "€ 63.28"
currency: EUR
in_stock: true
reviews_count: 8
category: "Tyr"
url: https://www.desertcart.es/products/1238835-boys-durafast-one-jammer-swimsuit
store_origin: ES
region: Spain
---

# 20x longer-lasting polyester UPF 50+ sun & chlorine protection 4-way stretch for max mobility Boys Durafast One Jammer Swimsuit

**Brand:** tyr
**Price:** € 63.28
**Availability:** ✅ In Stock

## Summary

> 🏅 Swim Strong, Stay Sharp — Gear Up Like a Pro!

## Quick Answers

- **What is this?** Boys Durafast One Jammer Swimsuit by tyr
- **How much does it cost?** € 63.28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/1238835-boys-durafast-one-jammer-swimsuit)

## Best For

- tyr enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Legacy:** From TYR, a leader in swimwear since 1985, engineered for champions in the making.
- • **Built to Outlast:** Crafted from 100% polyester, these jammers last 20x longer than typical swimwear—no sagging, no fading.
- • **Freedom to Perform:** 4-way stretch fabric and a streamlined cut ensure unrestricted movement for training and competition.
- • **Sun & Chlorine Shield:** UPF 50+ protection and chlorine-resistant material keep colors vibrant and skin safe.
- • **Perfect Fit, Every Time:** Drawstring waist and knee-length design deliver secure, comfortable coverage for growing swimmers.

## Overview

The TYR Durafast One Boys' Jammer Swimsuit is engineered with premium 100% polyester fabric that lasts 20 times longer than standard swimwear. Featuring 4-way stretch technology and a drawstring waist, it offers elite performance and a secure fit. With UPF 50+ sun protection and chlorine resistance, it maintains vibrant colors and durability through intense swim sessions. Ideal for young athletes seeking comfort, mobility, and long-lasting quality from a trusted brand since 1985.

## Description

Durability knows no limits with the TYR Durafast One Boys' Swim Jammers. This boy swimsuit is made with 100% polyester and is 20 times longer-lasting than traditional swimwear; you can be sure the fit won’t sag and the color won’t fade in the sun or chlorine. Boasting four-way stretch technology and UPF 50+, this Durafast youth swimsuit provides excellent freedom of movement and sun protection.

Review: I will buy again in the future - My son has been swimming for awhile, but just switched to this type of swim trunk because he needs them to wear under a wetsuit. He wasn't sure about them when he first tried them on because he was so used to the standard baggy style. After swimming in them the first time, he was a convert. He made the comment that "they don't ever seem to be wet". From toweling off beside the pool to 5 minutes later in the locker room, they were almost completely dry. He said he was surprised at how dry they were compared to how his baggy ones are always soaking when he was putting them into his swim bag. These are now his go-to trunks for swim practice. I cannot yet speak to durability since we've only had them a short time, but so far they are just what we were looking for. Fit well under his wet suit. Drawstring is extra help to prevent accidental overexposure. Nice sturdy, opaque fabric. Arrived in a timely manner. I'll buy another pair for the season to alternate daily. I'll also look to buy these again when he grows into the next size. Speaking of size, I followed the other (very helpful) reviews and bought the 26 (he's an 8/10 in the waist in boys pants), which was a perfect fit with a little bit of room to grow, so they should last him for awhile.The manufacturers tag attached to the shorts shows the following size guide for boys/men, which seems to correlate well with standard boys' clothing sizing: Us Size TYR size Waist in inches 4/5 22 22 6/7 24 24 8/10 26 XXS 26 12/14 28 XS 28 16/18 30 S 30 - 32 M 32 - 34 L 34 - 36 XL 36 - 38 XXL 38 - 40 XXL 40
Review: True to size, color hasn't faded after a month ** Update July 2019 ** - ** Update July 2019: My son has now worn these for 10 months, 3x a week, as well as at several competitions since my initial review in Oct. I haven't noticed any fading in the color, and the material is holding up well. No tears or rips in the seam despite regular use and weekly laundry. But most amazingly, the color is as solid and uniformly dark navy as it was the day we got it. The chlorine has had no effect on the color or durability of the material. They need to make swim caps out of this stuff. Those silicone caps are no match for 10 yr old boys. ** These are very well made and perfect for my son on the swim team. The material is thick and durable, and I haven't noticed any fading of the color over the past month despite constant exposure to chlorinated pool water (he swims 3x/week, 50 minutes a session). The TYR logo is embroidered onto the jammer so there's no peeling or cracking of a glued on logo. We ordered size 26 as his waist measured 26 inches, and the shorts were a good snug fit. There's definitely room to grow. I suspect that this will easily fit him until his waist is over 28 inches... giving him plenty of space to fill out. There was no mention of this on the listing, but the jammers come with drawstring ties for the waist.

## Features

- PREMIUM DURABILITY: Constructed from 100% polyester fabric, these boys' swim trunks are designed to last 20x longer than traditional swim suits, with a fit that won't sag and colors that won't fade.
- PERFORMANCE DESIGN: A streamlined cut with a drawstring waist and compressive fabric make these boy swim shorts an elite choice for training, competing, and recreational swimming. They feature 4-way stretch technology for freedom of movement.
- CHLORINE AND SUN PROOF: The TYR Durafast One Boys' Swim Jammers resist damage from chlorine and are constructed with UPF 50+. They deliver long-lasting durability and protection in the water and under the sun.
- IDEAL FIT: These jammer-style boys' swim trunks are cut to land just above the knee, delivering optimal coverage and unrestricted range of motion. Young swimmers of every level can enjoy the perfect balance of support and mobility.
- SINCE 1985: Since its inception, TYR has become one of the world’s most recognizable swimming and fitness brands. TYR, Always in Front.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0CRJXX35K |
| Best Sellers Rank | #47,732 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #7 in Boys' Athletic Swimwear Jammers |
| Customer Reviews | 4.2 4.2 out of 5 stars (279) |
| Date First Available  | September 14, 2022 |
| Department  | boys |
| Item model number  | SDUR7Y122 |
| Manufacturer  | TYR |

## Images

![Boys Durafast One Jammer Swimsuit - Image 1](https://m.media-amazon.com/images/I/71Xv3HYplNL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ I will buy again in the future
*by P***R on June 14, 2016*

My son has been swimming for awhile, but just switched to this type of swim trunk because he needs them to wear under a wetsuit. He wasn't sure about them when he first tried them on because he was so used to the standard baggy style. After swimming in them the first time, he was a convert. He made the comment that "they don't ever seem to be wet". From toweling off beside the pool to 5 minutes later in the locker room, they were almost completely dry. He said he was surprised at how dry they were compared to how his baggy ones are always soaking when he was putting them into his swim bag. These are now his go-to trunks for swim practice. I cannot yet speak to durability since we've only had them a short time, but so far they are just what we were looking for. Fit well under his wet suit. Drawstring is extra help to prevent accidental overexposure. Nice sturdy, opaque fabric. Arrived in a timely manner. I'll buy another pair for the season to alternate daily. I'll also look to buy these again when he grows into the next size. Speaking of size, I followed the other (very helpful) reviews and bought the 26 (he's an 8/10 in the waist in boys pants), which was a perfect fit with a little bit of room to grow, so they should last him for awhile.The manufacturers tag attached to the shorts shows the following size guide for boys/men, which seems to correlate well with standard boys' clothing sizing: Us Size TYR size Waist in inches 4/5 22 22 6/7 24 24 8/10 26 XXS 26 12/14 28 XS 28 16/18 30 S 30 - 32 M 32 - 34 L 34 - 36 XL 36 - 38 XXL 38 - 40 XXL 40

### ⭐⭐⭐⭐⭐ True to size, color hasn't faded after a month ** Update July 2019 **
*by C***W on October 7, 2018*

** Update July 2019: My son has now worn these for 10 months, 3x a week, as well as at several competitions since my initial review in Oct. I haven't noticed any fading in the color, and the material is holding up well. No tears or rips in the seam despite regular use and weekly laundry. But most amazingly, the color is as solid and uniformly dark navy as it was the day we got it. The chlorine has had no effect on the color or durability of the material. They need to make swim caps out of this stuff. Those silicone caps are no match for 10 yr old boys. ** These are very well made and perfect for my son on the swim team. The material is thick and durable, and I haven't noticed any fading of the color over the past month despite constant exposure to chlorinated pool water (he swims 3x/week, 50 minutes a session). The TYR logo is embroidered onto the jammer so there's no peeling or cracking of a glued on logo. We ordered size 26 as his waist measured 26 inches, and the shorts were a good snug fit. There's definitely room to grow. I suspect that this will easily fit him until his waist is over 28 inches... giving him plenty of space to fill out. There was no mention of this on the listing, but the jammers come with drawstring ties for the waist.

### ⭐⭐⭐⭐ Summer swim team
*by A***Y on August 1, 2022*

Suit fit as expected and has lasted for the duration of summer swim league. There has been a little scratching/pulling on the rear end despite my son being careful about not sitting on concrete in them

## Frequently Bought Together

- TYR Boys' Durafast One Jammer Swimsuit
- FINIS Long Floating Swim Fins - Training Fins for All Ages - Improves Kick Technique & Body Position
- TYR Big Mesh Mummy Backpack for Swim, Gym and Workout Gear, Black, 40-Liter Capacity

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-22*