---
product_id: 781683274
title: "[Speed] Swim Brief Eco Flex 2\" Outseam Beachstar Men's Blue"
brand: "speedo(スピード)"
price: "¥5647"
currency: JPY
in_stock: true
reviews_count: 5
category: "Speedo(スピード)"
url: https://www.desertcart.jp/products/781683274-speed-swim-brief-eco-flex-2-outseam-beachstar-mens-blue
store_origin: JP
region: Japan
---

# Adjustable secure fit Chlorine-resistant fabric UPF 50+ sun defense [Speed] Swim Brief Eco Flex 2" Outseam Beachstar Men's Blue

**Brand:** speedo(スピード)
**Price:** ¥5647
**Availability:** ✅ In Stock

## Summary

> ☀️ Dive into summer with confidence and style!

## Quick Answers

- **What is this?** [Speed] Swim Brief Eco Flex 2" Outseam Beachstar Men's Blue by speedo(スピード)
- **How much does it cost?** ¥5647 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/781683274-speed-swim-brief-eco-flex-2-outseam-beachstar-mens-blue)

## Best For

- speedo(スピード) enthusiasts

## Why This Product

- Trusted speedo(スピード) brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek & Smooth:** Speedo Flex fabric offers a streamlined, confident silhouette
- • **Sun-Smart Shield:** UPF 50+ blocks 98% of harmful rays for all-day protection
- • **Tailored Comfort:** Interior drawcord ensures a perfect, customizable fit every time
- • **Beach-Ready Style:** Bold Beachstar pattern makes you stand out poolside or seaside
- • **Pool-Proof Performance:** Chlorine-resistant fabric keeps your brief fresh and durable swim after swim

## Overview

The Speedo Swim Brief Eco Flex 2" Outseam Beachstar in Men's Blue combines UPF 50+ sun protection with chlorine-resistant fabric and an adjustable interior drawcord for a secure, comfortable fit. Designed for durability and style, this brief features Speedo's FlexBlock technology to keep you protected and smooth during all your aquatic adventures.

## Description

Make a statement this summer with the Beachstar 5cm Briefs. Chlorine-resistant fabric allows you to take it to the pool while an internal drawcord ensures a secure fit. Block burns with UPF 50+ sun protection Speedo Flex fabric helps keep you smooth

Review: Awesome Speedo brief. Suit does fit well and looks nice with pattern/design.
Review: These Speedos are the perfect fit for me as a size 30. However I wish that they had a bit of extra padding at the front as they are not subtle in showing the contours of your package.

## Features

- Speedo Flex
- Block Burns: UPF 50+ protection blocks up to 98% of the sun's harmful rays
- Chlorine resistant
- Front and back liner
- Interior drawcord for adjustability

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0CGYMKMG6 |
| Amazon Bestseller | #1,206,323 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #232 in Men's Swim Briefs |
| Customer Reviews | 4.7 4.7 out of 5 stars (77) |
| Date First Available  | September 25, 2025 |
| Department  | Men |
| Item model number  | M2ECOFLXBEACHSTARBRIEF |
| Manufacturer  | Speedo |

## Images

![[Speed] Swim Brief Eco Flex 2" Outseam Beachstar Men's Blue - Image 1](https://m.media-amazon.com/images/I/71F5mXgzhPL.jpg)
![[Speed] Swim Brief Eco Flex 2" Outseam Beachstar Men's Blue - Image 2](https://m.media-amazon.com/images/I/717PTXm2GtL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***R on December 1, 2025*

Awesome Speedo brief. Suit does fit well and looks nice with pattern/design.

### ⭐⭐⭐⭐⭐ Review
*by J***J on July 30, 2024*

These Speedos are the perfect fit for me as a size 30. However I wish that they had a bit of extra padding at the front as they are not subtle in showing the contours of your package.

### ⭐⭐⭐⭐⭐ Review
*by G***O on June 22, 2025*

Excelente sunga, e ótimo tecido.

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**Shop now:** [https://www.desertcart.jp/products/781683274-speed-swim-brief-eco-flex-2-outseam-beachstar-mens-blue](https://www.desertcart.jp/products/781683274-speed-swim-brief-eco-flex-2-outseam-beachstar-mens-blue)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-14*