---
product_id: 690302093
title: "MALEBASICS Justin+Simon Underwear, Classic Bikini Brief XSJ01, Black, Pack of 1"
brand: "malebasics"
price: "$68.73"
currency: USD
in_stock: true
reviews_count: 3
category: "Malebasics"
url: https://www.desertcart.us/products/690302093-malebasics-justin-simon-underwear-classic-bikini-brief-xsj01-black-pack
store_origin: US
region: United States of America
---

# 4cm side seam for durability Satin-smooth micro fabric Very low rise design MALEBASICS Justin+Simon Underwear, Classic Bikini Brief XSJ01, Black, Pack of 1

**Brand:** malebasics
**Price:** $68.73
**Availability:** ✅ In Stock

## Summary

> 🖤 Elevate your essentials with the sleek, silky low-rise that means business.

## Quick Answers

- **What is this?** MALEBASICS Justin+Simon Underwear, Classic Bikini Brief XSJ01, Black, Pack of 1 by malebasics
- **How much does it cost?** $68.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/690302093-malebasics-justin-simon-underwear-classic-bikini-brief-xsj01-black-pack)

## Best For

- malebasics enthusiasts

## Why This Product

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

## Key Features

- • **Smart Sizing Advice:** Runs small—order one size up to unlock optimal comfort and fit.
- • **Low Rise, High Style:** Modern bikini cut sits perfectly below the belt line for a sleek, contemporary look.
- • **Masculine Snug Pouch:** Unlined design offers natural support and a confident fit that moves with you.
- • **Silky Satin Micro Fabric:** Experience all-day comfort with a premium, lightweight, and breathable feel.
- • **Precision Fit with 4cm Side Seams:** Engineered for enhanced durability and a tailored silhouette that stays put.

## Overview

The MALEBASICS Justin+Simon Classic Bikini Brief in Black features a very low rise design with a signature ribbon detail, crafted from a premium satin-smooth micro fabric blend of 78% polyamide and 22% elastane. It includes a masculine unlined pouch for natural support and a 4cm side seam construction for enhanced fit and durability. Designed for adults, this lightweight, medium-stretch brief runs small, so sizing up is recommended for maximum comfort. Machine washable and imported from Colombia, it’s the perfect blend of style and function for the modern man.

## Description

XSJ01-JUSTIN + SIMON Classic Bikini

Review: A bikini waistline is lower than your boxers (obviously). Check your sizes. - I found the fit to be accurate for the size listed. I did make sure to read the sizing chart though which does point out that the bikini will settle where the bones from your hip are. That's about 3inches lower than the briefs or boxers you're used to. If you're also used to the belt from your pants holding onto your boxers, then this would feel like the underwear had slipped below your belt. That's kinda the point of a bikini. Once on, they don't move. They keep with the right position of your body (and package). I will say, that the package pouch size is the measurement they don't give. For myself, I wear an XL in normal mass market briefs, but looking at the measurements and knowing you would want these to hug a little more I went with the large. These do still have a tag and would be better tagless, but that's not the end of the world.
Review: Meh - Too tight in the crouch area barely any room

## Features

- Sizing Information: Small fit please order up a size for better comfort
- Masculine Pouch Design: Snug masculine pouch unlined for natural support and comfort
- Side Seam Construction: Features 4cm side seam for enhanced fit and durability
- Low Rise Style: Very low rise design with central signature ribbon detail
- Premium Fabric: Satin smooth micro fabric with silky feel provides all-day comfort and snug support

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BRJW7HY6 |
| Age Range Description | Adult |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Bottom style | Briefs |
| Brand Name | MALEBASICS |
| Care instructions | Machine Wash |
| Chest Size | 32 Inches |
| Closure Type | Pull On |
| Closure type | Pull On |
| Colour | Opal |
| Country Of Origin | Colombia |
| Country of origin | Colombia |
| Customer Reviews | 3.6 out of 5 stars 4 Reviews |
| Embellishment Feature | Bow, Ruched |
| Fabric Type | 78% Polyamide, 22% Elastane |
| Fit to Size Sentiment | Runs Small |
| Fitting type | Regular |
| Garment Size Country | Colombia |
| Import Designation | Imported |
| Item Type Name | Briefs |
| Lining Description | Nylon |
| Manufacturer | MALEBASICS |
| Manufacturer Part Number | XSJ01-Opal-S |
| Material Type | Nylon |
| Material composition | 78% Polyamide, 22% Elastane |
| Model Number | XSJ01 |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Rise Style | Low Rise |
| Size | S |
| Size Modifier | Standard |
| Sleeve Type | Sleeveless |
| Strap Type | Non-Adjustable |
| Style Name | Classic |
| Swimwear Bottom Form | Trunk |
| Swimwear Form Type | Bottom Only |
| Swimwear Top Form | Bandeau |
| UPC | 804859878809 |
| Unit Count | 1.0 count |

## Images

![MALEBASICS Justin+Simon Underwear, Classic Bikini Brief XSJ01, Black, Pack of 1 - Image 1](https://m.media-amazon.com/images/I/61Z+lyblmpL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ A bikini waistline is lower than your boxers (obviously). Check your sizes.
*by B***D on 18 January 2026*

I found the fit to be accurate for the size listed. I did make sure to read the sizing chart though which does point out that the bikini will settle where the bones from your hip are. That's about 3inches lower than the briefs or boxers you're used to. If you're also used to the belt from your pants holding onto your boxers, then this would feel like the underwear had slipped below your belt. That's kinda the point of a bikini. Once on, they don't move. They keep with the right position of your body (and package). I will say, that the package pouch size is the measurement they don't give. For myself, I wear an XL in normal mass market briefs, but looking at the measurements and knowing you would want these to hug a little more I went with the large. These do still have a tag and would be better tagless, but that's not the end of the world.

### ⭐⭐ Meh
*by T***M on 18 August 2025*

Too tight in the crouch area barely any room

### ⭐⭐ Too many oddities to wear right
*by J***8 on 28 October 2025*

This is some strange swimwear. First, it has no lining up front, which, for me, is de rigueur in a swimsuit of any shape or size. No drawstrings either. The front also seems to be oddly stitched, tight at the top, weirdly open in the middle. The size says it an XL, but it’s more of an L, even with its stretchiness. Even the logo seems to have been poorly stitched on, as it doesn’t show the name without an unwanted fold. The plusses are that it is lightweight and covers my backside well. Not enough in my book, even as underwear.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-24*