---
product_id: 700944785
title: "Whoop 4.0 Compatible HydroKnit Wrist Band | Fast-Drying, Sweat-Wicking & Ultra-Breathable | Retains Less Moisture for Comfort & Performance"
brand: "ar labs"
price: "¥10790"
currency: JPY
in_stock: true
reviews_count: 8
category: "Ar Labs"
url: https://www.desertcart.jp/products/700944785-whoop-4-0-compatible-hydroknit-wrist-band-fast-drying-sweat
store_origin: JP
region: Japan
---

# 2X faster drying Sweat-wicking microfilament fibers 30% less moisture retention Whoop 4.0 Compatible HydroKnit Wrist Band | Fast-Drying, Sweat-Wicking & Ultra-Breathable | Retains Less Moisture for Comfort & Performance

**Brand:** ar labs
**Price:** ¥10790
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your Whoop game with HydroKnit — where performance meets style!

## Quick Answers

- **What is this?** Whoop 4.0 Compatible HydroKnit Wrist Band | Fast-Drying, Sweat-Wicking & Ultra-Breathable | Retains Less Moisture for Comfort & Performance by ar labs
- **How much does it cost?** ¥10790 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/700944785-whoop-4-0-compatible-hydroknit-wrist-band-fast-drying-sweat)

## Best For

- ar labs enthusiasts

## Why This Product

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

## Key Features

- • **Sweat? No Sweat.:** Advanced moisture-wicking tech pulls sweat away instantly for ultra-breathable comfort.
- • **Stay Fresh, All Day Long:** HydroKnit fabric dries twice as fast, keeping your wrist irritation-free during intense workouts.
- • **Effortless Fit, Every Time:** Adjustable strap and easy installation make swapping bands a breeze for any wrist size.
- • **Durability Meets Flexibility:** Premium materials with reinforced stitching ensure long-lasting wear without sacrificing mobility.
- • **Style That Speaks Performance:** Sleek design with bold color options to match your active lifestyle and elevate your look.

## Overview

The AR LABS HydroKnit Wrist Band is a premium, fast-drying, and sweat-wicking replacement strap designed exclusively for Whoop 4.0. Engineered with advanced microfilament fibers, it retains 30% less moisture and dries twice as fast as standard bands, ensuring all-day comfort and durability. Featuring reinforced stitching, an adjustable fit, and a sleek design with multiple color options, this band is built to keep pace with your most intense workouts while making a bold style statement.

## Description

AR LABS Whoop 4.0 Compatible HydroKnit Wrist Band | Fast-Drying, Sweat-Wicking & Ultra-Breathable | Retains Less Moisture for Comfort & Performance (Deep Red/Burgundy) : desertcart.co.uk: Sports & Outdoors

Review: Its decent - color is great but it started coming apart and i feel like it would come clean off.
Review: Colours not great - Fits the older Whoop okay, plastic components which you would expect more or less but the colour is waaaaaaaaay off what's advertised. The Orange one is more like a safety cone orange, vibrant and fluorescent rather than the more muted tone you see here. Kinda garish and not what I was after. But it keeps the whoop physically on my wrist and so does the main job

## Features

- 𝗖𝗢𝗠𝗣𝗔𝗧𝗜𝗕𝗜𝗟𝗜𝗧𝗬 𝗔𝗡𝗗 𝗠𝗔𝗧𝗘𝗥𝗜𝗔𝗟: Designed for the Whoop 4.0, our HydroKnit performance band features advanced moisture-wicking technology, offering a secure, flexible, and ultra-comfortable fit for all-day wear.
- 𝗙𝗔𝗦𝗧-𝗗𝗥𝗬𝗜𝗡𝗚 𝗧𝗘𝗖𝗛: The HydroKnit fabric dries 2X faster than standard bands and retains 30% less moisture, keeping your wrist fresh and irritation-free, even during the most intense workouts.
- 𝗦𝗪𝗘𝗔𝗧-𝗪𝗜𝗖𝗞𝗜𝗡𝗚 & 𝗕𝗥𝗘𝗔𝗧𝗛𝗔𝗕𝗟𝗘: Engineered with high-performance microfilament fibers, this band efficiently wicks away sweat, ensuring cool, dry comfort throughout your fitness sessions.
- 𝗗𝗨𝗥𝗔𝗕𝗜𝗟𝗜𝗧𝗬 𝗠𝗘𝗘𝗧𝗦 𝗣𝗘𝗥𝗙𝗢𝗥𝗠𝗔𝗡𝗖𝗘: Made with premium materials and reinforced stitching, the HydroKnit band delivers long-lasting durability while maintaining lightweight flexibility for maximum mobility.
- 𝗘𝗔𝗦𝗬 𝗜𝗡𝗦𝗧𝗔𝗟𝗟𝗔𝗧𝗜𝗢𝗡 & 𝗔𝗗𝗝𝗨𝗦𝗧𝗔𝗕𝗟𝗘 𝗙𝗜𝗧: Featuring all the components you need so swapping bands is effortless, while the adjustable strap ensures a perfect fit for all wrist sizes.
- 𝗦𝗟𝗘𝗘𝗞 𝗗𝗘𝗦𝗜𝗚𝗡 & 𝗖𝗢𝗟𝗢𝗨𝗥 𝗢𝗣𝗧𝗜𝗢𝗡𝗦: Designed with premium aesthetics in mind, our HydroKnit band includes black accents and a variety of colours to match your personal style.
- 𝗔𝗗𝗗𝗜𝗧𝗜𝗢𝗡𝗔𝗟 𝗜𝗡𝗙𝗢𝗥𝗠𝗔𝗧𝗜𝗢𝗡: Our product is a compatible/replacement strap for Whoop 4.0 devices. The band comes with everything you need (band, hook, clasp, and slider). AR Performance Labs operates independently and is not affiliated with Whoop.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DXDGVYLD |
| Batteries included? | No |
| Best Sellers Rank | 20,167 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 43 in Sports & Fitness Wristbands |
| Brand | AR LABS |
| Color | Deep Red/Burgundy |
| Customer Reviews | 3.1 3.1 out of 5 stars (21) |
| Date First Available | 16 Feb. 2025 |
| Department | Unisex, Men's, Women's |
| Material type | Polyester |
| Package Dimensions | 18 x 6 x 1 cm; 25 g |
| Size | One Size |
| Sport | Multi-Sport |

## Product Details

- **Band material type:** Polyester
- **Brand:** AR LABS
- **Colour:** Deep Red/Burgundy
- **Sport:** Multi-Sport

## Images

![Whoop 4.0 Compatible HydroKnit Wrist Band | Fast-Drying, Sweat-Wicking & Ultra-Breathable | Retains Less Moisture for Comfort & Performance - Image 1](https://m.media-amazon.com/images/I/712vpx8p+KL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐ Its decent
*by D***I on 27 November 2025*

color is great but it started coming apart and i feel like it would come clean off.

### ⭐⭐ Colours not great
*by B***N on 1 December 2025*

Fits the older Whoop okay, plastic components which you would expect more or less but the colour is waaaaaaaaay off what's advertised. The Orange one is more like a safety cone orange, vibrant and fluorescent rather than the more muted tone you see here. Kinda garish and not what I was after. But it keeps the whoop physically on my wrist and so does the main job

### ⭐ Broken piece received
*by S***Y on 13 January 2026*

It was broken when I received my order.

## Frequently Bought Together

- AR LABS Whoop 4.0 Compatible HydroKnit Wrist Band | Fast-Drying, Sweat-Wicking & Ultra-Breathable | Retains Less Moisture for Comfort & Performance
- AOOZTO for apple Watch Charger to USB-C [MFi Certified] Fast Wireless Magnetic Portable Compatible with Apple Watch Series 9 8 SE Ultra,Ultra2,38/40/42/44mm(1 m),white (White)

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**Shop now:** [https://www.desertcart.jp/products/700944785-whoop-4-0-compatible-hydroknit-wrist-band-fast-drying-sweat](https://www.desertcart.jp/products/700944785-whoop-4-0-compatible-hydroknit-wrist-band-fast-drying-sweat)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-17*