---
product_id: 738054348
title: "STEP ONE Mens Underwear Trunk Briefs, 1 Pair, Underwear for Men, Moisture Wicking, 3D Pouch + No Ride Up Trunk Briefs for Men"
brand: "step one"
price: "¥6908"
currency: JPY
in_stock: true
category: "Step One"
url: https://www.desertcart.jp/products/738054348-step-one-mens-underwear-trunk-briefs-1-pair-underwear-men
store_origin: JP
region: Japan
---

# Moisture-wicking bamboo viscose Ultra breathable fabric 3D pouch for secure support STEP ONE Mens Underwear Trunk Briefs, 1 Pair, Underwear for Men, Moisture Wicking, 3D Pouch + No Ride Up Trunk Briefs for Men

**Brand:** step one
**Price:** ¥6908
**Availability:** ✅ In Stock

## Summary

> 🔥 Step Into Next-Level Comfort & Confidence

## Quick Answers

- **What is this?** STEP ONE Mens Underwear Trunk Briefs, 1 Pair, Underwear for Men, Moisture Wicking, 3D Pouch + No Ride Up Trunk Briefs for Men by step one
- **How much does it cost?** ¥6908 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/738054348-step-one-mens-underwear-trunk-briefs-1-pair-underwear-men)

## Best For

- step one enthusiasts

## Why This Product

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

## Key Features

- • **No More Ride-Up:** Ultraglyde panel tech prevents annoying bunching and chafing, so you stay focused and confident.
- • **Stay Cool & Fresh:** Bamboo viscose fabric wicks away moisture, keeping you dry whether at work, gym, or weekend adventures.
- • **Invisible Comfort All Day:** Feel like you're wearing nothing with ultra-soft, breathable trunks designed for seamless movement.
- • **Precision 3D Pouch Support:** Keep everything perfectly in place—no matter your size—with ergonomically engineered pouch technology.
- • **Ethically Crafted in Australia:** Look good, feel good, and support sustainable fashion with ethically made, eco-friendly materials.

## Overview

STEP ONE Men's Underwear Trunk Briefs combine innovative 3D pouch design with moisture-wicking bamboo viscose fabric to deliver breathable, chafe-free comfort. Ethically designed in Australia, these lightweight trunks offer medium stretch and a no-ride-up fit, making them the perfect everyday essential for the modern man who values style, performance, and sustainability.

## Description

Free Next Day Delivery on Prime Eligible desertcart Fashion Orders. Free 30-Days Returns.

## Features

- TRUNKS THAT FEEL INVISIBLE AGAINST YOUR SKIN - game-changing ultra breathable men's boxer trunks that blend style, comfort, and movement for well-fitting men's underwear that's so soft it feels like you're wearing nothing at all
- 3D POUCH THAT KEEPS THE BOYS IN PLACE – Big Balls, Small balls - no matter what you're packing these men's boxer shorts not only make your crown jewels look good but surround you and your boys perfectly, keeping everything in place
- CHAFE-REDUCING BOXERS FOR MEN - ideal for guys with thinner legs, the unique Ultraglyde panel technology by the geniuses at Step One helps prevent ride up and those awkward re-adjustment moments with your hands down your underpants
- KEEPS YOU COOL & FRESH - the moisture wicking viscose made from bamboo underwear removes sweat keeping you cool and dry at all times, no more stickiness in your underwear trunks when you're playing sport, working out or chilling in the sun
- DESIGNED IN AUS - to keep you looking and feeling good down under, Step One boxers are ethically made with Bamboo viscose fabric so it's just as good for the world as it is for your behind

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DTTS16GS |
| ASIN  | B0B457ZNKY |
| Age Range Description | Adult |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | 5,797 in Fashion ( See Top 100 in Fashion ) 19 in Men's Underwear Trunks |
| Bottom Style | Trunks |
| Brand Name | STEP ONE |
| Colour | Black |
| Country Of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,884) |
| Customer reviews | 4.5 4.5 out of 5 stars (2,884) |
| Date First Available  | 15 Jun. 2022 |
| Department  | Men's |
| Fabric Type | 95% Bamboo Viscose and 5% Spandex |
| Fit Type | regular |
| Fit to Size Sentiment | Fit well |
| Garment Size Country | Australia |
| Global Trade Identification Number | 09360941000172 |
| Item Type Name | Trunks |
| Manufacturer | Step One |
| Manufacturer  | Step One |
| Material Type | Bamboo Viscose, Spandex |
| Number of Items | 1 |
| Package Dimensions  | 18 x 16 x 0.4 cm; 75 g |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Rise Style | Mid |
| Size | S |
| Special Features | Anti Chafe, Breathable, Lightweight, Moisture Wicking |
| Style Name | Modern |
| Unit Count | 1.0 count |

## Images

![STEP ONE Mens Underwear Trunk Briefs, 1 Pair, Underwear for Men, Moisture Wicking, 3D Pouch + No Ride Up Trunk Briefs for Men - Image 1](https://m.media-amazon.com/images/I/61D7PhedxPL.jpg)
![STEP ONE Mens Underwear Trunk Briefs, 1 Pair, Underwear for Men, Moisture Wicking, 3D Pouch + No Ride Up Trunk Briefs for Men - Image 2](https://m.media-amazon.com/images/I/71GVg7M5aPL.jpg)
![STEP ONE Mens Underwear Trunk Briefs, 1 Pair, Underwear for Men, Moisture Wicking, 3D Pouch + No Ride Up Trunk Briefs for Men - Image 3](https://m.media-amazon.com/images/I/61Hm--F6jBL.jpg)
![STEP ONE Mens Underwear Trunk Briefs, 1 Pair, Underwear for Men, Moisture Wicking, 3D Pouch + No Ride Up Trunk Briefs for Men - Image 4](https://m.media-amazon.com/images/I/61FkkQJ1SwL.jpg)
![STEP ONE Mens Underwear Trunk Briefs, 1 Pair, Underwear for Men, Moisture Wicking, 3D Pouch + No Ride Up Trunk Briefs for Men - Image 5](https://m.media-amazon.com/images/I/819+DTSBP2L.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the first pair promise?**
A: We are so confident you'll love your Step One underwear; we'll reimburse your first pair if you don't like them for any reason - even if you've already tried and worn them!

**Q: Where are Step One's designed?**
A: All our underpants are designed at Step One HQ in Sydney, Australia, and ethics are at the forefront of every decision made here at Step One, from the Sydney office to the bamboo forests.

**Q: How do I care for my Step Ones?**
A: We recommend a cold machine wash with a gentle soap to best maintain the integrity of the organic bamboo fabric. While we do recommend a line dry, you can tumble dry using a delicate setting and/or a low heat to prevent any damage to the garment.

**Q: What's the difference between Boxer Brief's and Trunks?**
A: The only difference between the two is that Boxer Briefs have 3 cm more leg length than the trunks.

**Q: What type of underwear is best for me?**
A: Boxer Brief - Designed for men with thicker legs Trunk - Shorter length (4" inseam) - ideal for men with thinner legs Boxer Brief Sport - 8" inseam - extra length for strenuous exercise

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**Shop now:** [https://www.desertcart.jp/products/738054348-step-one-mens-underwear-trunk-briefs-1-pair-underwear-men](https://www.desertcart.jp/products/738054348-step-one-mens-underwear-trunk-briefs-1-pair-underwear-men)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-16*