---
product_id: 527645039
title: "Arena Men's M Dynamo 5.5cm Brief R Swim Briefs"
brand: "arena"
price: "131.76 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Arena"
url: https://www.desertcart.tn/products/527645039-arena-mens-m-dynamo-5-5cm-brief-r-swim-briefs
store_origin: TN
region: Tunisia
---

# 4-way stretch MaxFit fabric UPF 50+ UV protection Eco-friendly recycled polyamide Arena Men's M Dynamo 5.5cm Brief R Swim Briefs

**Brand:** arena
**Price:** 131.76 DT
**Availability:** ✅ In Stock

## Summary

> ♻️ Dive into sustainable style and unbeatable comfort!

## Quick Answers

- **What is this?** Arena Men's M Dynamo 5.5cm Brief R Swim Briefs by arena
- **How much does it cost?** 131.76 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/527645039-arena-mens-m-dynamo-5-5cm-brief-r-swim-briefs)

## 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

- • **Comfort That Lasts:** Soft front lining and adjustable inner drawstring ensure a snug, irritation-free fit.
- • **Pool to Beach Ready:** Chlorine and salt resistant fabric keeps you fresh and confident wherever you dive in.
- • **Sun-Safe Swim Sessions:** Integrated UPF 50+ protection shields your skin from harmful UV rays.
- • **Eco-Conscious Performance:** Made from 100% recycled polyamide, combining sustainability with style.
- • **Unmatched Freedom of Movement:** MaxFit fabric with 4-way stretch adapts perfectly to your every stroke.

## Overview

The ARENA Men's Santamarias R Swim Briefs feature advanced MaxFit fabric offering 4-way stretch, chlorine and salt resistance, and UPF 50+ UV protection. Crafted from eco-friendly recycled polyamide with OEKO-TEX certification, these briefs provide a snug, comfortable fit with a soft front lining and adjustable drawstring, perfect for both pool training and beach leisure.

## Description

The arena Dynamo R men's swimming briefs are comfortable and stretchy, with a classic cut that fits like a second skin. With a sporty cut, they are part of the arena Feel line and are suitable for fitness swimmers and leisure swimmers, as well as for other activities in the pool, sea and aquatic environments. Made of chlorine- and salt-resistant MaxFit fabric with integrated UPF 50+ UV protection. The 4-way stretch fabric guarantees a adequate fit, maximum freedom of movement and comfort. It is the evolution of the arena MaxFit fabric and is made of recycled polyamide. With soft front lining and adjustable inner drawstring for an adequate fit. Side length: 5.5cm. Every component of the fabrics bearing the OEKO-TEX STANDARD 100 label has been tested for harmful substances, so this article is safe for human health. The test is conducted by independent OEKO-TEX partner institutes and certifies a wide range of criteria.

Review: fit great for traning/racing - Great training/racing brief, is tighter at the top which helps keep them on without needing to worry the whole time about the cord, but can be uncomfortable if you need to wear for a long time. Being a swim brief , the sizing fit is tight but thats what you want for training. Good value for money compared to the other brands, and the Arena quality is great.
Review: Snug fitting brief. - Purchased as replacemnt for a pair that I bought a few years ago. These seem slightly smaller than the originals mainly I think because there is less 'stretch' in the material.

## Features

- SWIMMING BRIEFS: The Arena Dynamo R men's swimming trunks are a comfortable, classic-cut swimming trunks made of MaxFit fabric, which ensures comfort and a high fit
- MAXFIT FABRIC: Arena's MaxFit fabric is chlorine and salt resistant and has 4-way stretch; it has integrated UPF 50+ UV protection, quick-drying, and offers the right balance between fit and comfort
- BEACH AND POOL SWIMWEAR: arena Dynamo R, part of the arena Feel line, is a swimming brief that is suitable for both the sea and the pool, designed for casual swimmers who want to train in comfort
- COMFORTABLE: the soft, lined fabric at the front ensures a high degree of comfort, while the adjustable inner drawstring provides an adequate fit; side length: 5.5 cm
- COMPOSITION: Men's swimsuit made of 80% Polyamide and 20% Elastane (environmentally friendly fabric: 100% Polyamide is recycled); skin-friendly fabric with STANDARD 100 certification by OEKO-TEX

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BMH31MRF |
| Age Range Description | Adult |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Back Style | Low Coverage |
| Benefits | Comfort and UV protection |
| Best Sellers Rank | 15,486 in Fashion ( See Top 100 in Fashion ) 78 in Men's Swim Shorts & Trunks |
| Brand Name | ARENA |
| Care instructions | Hand Wash Only |
| Chest Size | 34 Inches |
| Closure Type | No closure |
| Closure type | No closure |
| Colour | Royal |
| Country Of Origin | Vietnam |
| Country of origin | Vietnam |
| Customer Reviews | 4.1 out of 5 stars 651 Reviews |
| Fabric Type | 80% Polyamide, 20% Elastane (eco-friendly fabric: 100% of Polyamide is recycled) |
| Fit to Size Sentiment | Positive |
| Fitting type | Snug |
| Garment Size Country | Great Britain |
| Item Type Name | Swim Briefs |
| Lining Description | soft front lining |
| Manufacturer | arena |
| Manufacturer Part Number | 006491 |
| Material Type | Polyamide |
| Material composition | 80% Polyamide, 20% Elastane (eco-friendly fabric: 100% polyamide is recycled) |
| Model Number | 006491 |
| Neck Style | High Neck |
| Neck style | High Neck |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Hand Wash Only |
| Rise Style | Normal |
| Size | 34 |
| Size Modifier | Standard |
| Sleeve Length Description | Sleeveless |
| Sleeve Type | Sleeveless |
| Strap Type | Non-Adjustable |
| Style Name | Contemporary |
| Swimwear Bottom Form | Briefs |
| Swimwear Form Type | Bottom Only |
| Ultraviolet Protection Factor | UPF 50+ |
| Unit Count | 1.0 count |

## Images

![Arena Men's M Dynamo 5.5cm Brief R Swim Briefs - Image 1](https://m.media-amazon.com/images/I/61GuMtK2xTL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ fit great for traning/racing
*by J***C on 17 August 2025*

Great training/racing brief, is tighter at the top which helps keep them on without needing to worry the whole time about the cord, but can be uncomfortable if you need to wear for a long time. Being a swim brief , the sizing fit is tight but thats what you want for training. Good value for money compared to the other brands, and the Arena quality is great.

### ⭐⭐⭐⭐ Snug fitting brief.
*by D***0 on 31 July 2025*

Purchased as replacemnt for a pair that I bought a few years ago. These seem slightly smaller than the originals mainly I think because there is less 'stretch' in the material.

### ⭐⭐⭐⭐⭐ Excellent and great value
*by S***S on 14 March 2026*

UPDATED: Reordered a size bigger now excellent. For usual size 36inch waist order size 38. MUST ORDER A SIZE UP. A great looking swim brief with the narrower side. Great value and excellent quality.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-19*