---
product_id: 702943088
title: "– AR LABS Whoop 4.0 Compatible HydroKnit Wrist Band | Fast-Drying, Sweat-Wicking & Ultra-Breathable | Retains Less Moisture for Comfort & Performance"
brand: "ar labs"
price: "¥10688"
currency: JPY
in_stock: true
reviews_count: 8
category: "Ar Labs"
url: https://www.desertcart.jp/products/702943088-ar-labs-whoop-4-0-compatible-hydroknit-wrist-band-fast
store_origin: JP
region: Japan
---

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

**Brand:** ar labs
**Price:** ¥10688
**Availability:** ✅ In Stock

## Summary

> 💪 Elevate your Whoop game with HydroKnit comfort that works as hard as you do!

## Quick Answers

- **What is this?** – AR LABS 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?** ¥10688 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/702943088-ar-labs-whoop-4-0-compatible-hydroknit-wrist-band-fast)

## 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? What Sweat?:** Wicks away moisture efficiently with 30% less retention for irritation-free all-day comfort.
- • **Stay Dry, Stay Ahead:** Advanced HydroKnit tech dries twice as fast, keeping your wrist fresh through every grind.
- • **Versatile Performance Band:** Engineered for gym, swim, sauna, and recovery—your all-environment fitness companion.
- • **Built to Move, Built to Last:** Premium polyester and reinforced stitching deliver durability without sacrificing flexibility.
- • **Effortless Fit, Instant Style:** Adjustable strap and sleek design ensure a perfect fit and a look that matches your vibe.

## Overview

The AR LABS HydroKnit Wrist Band is a premium, fast-drying, and sweat-wicking replacement strap designed exclusively for Whoop 4.0. Crafted from advanced polyester microfilament fibers, it dries twice as fast and retains 30% less moisture than standard bands, ensuring superior comfort during intense workouts and recovery sessions. With reinforced stitching and an adjustable fit, this ultra-breathable band combines durability, flexibility, and style, making it ideal for active professionals who demand performance and aesthetics in one affordable package.

## Description

Product Description Why Choose Us? At AR Performance Labs, we're fitness enthusiasts creating affordable, high-quality accessories that blend style and functionality. Our HydroKnit Band is designed for those who push their limits, the HydroKnit band offers superior moisture resistance to keep your wrist dry and comfortable during intense workouts, swimming, sauna sessions, and ice baths - even just the shower. Whether you're training hard or embracing recovery, this band is built to perform in any environment.—we're dedicated to helping you customise your fitness journey without compromising quality or breaking the bank. Quick-Drying Wicking Technology Moisture-resistant material retains up to 30% less moisture than standard bands, keeping you dry and comfortable. Designed for Active Lifestyles Perfect for gym-goers, swimmers, ice bath users, surfers, and sauna lovers —built for movement and recovery. Premium Feel, Affordable Price Made from high-performance materials for durability and comfort at a fraction of the cost of similar bands.

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 | B0DXDG28ZQ |
| Band Material Type | Polyester |
| Band Size | one size |
| Band material type | Polyester |
| Best Sellers Rank | 34,183 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 70 in Sports & Fitness Wristbands |
| Brand | AR LABS |
| Brand Name | AR LABS |
| Colour | Night Black |
| Country Of Origin | United Kingdom |
| Customer Reviews | 3.2 out of 5 stars 23 Reviews |
| Item Length | 25 Centimetres |
| Number of Packs | 1 |
| Sport | Multi-Sport |
| Sport Type | Multi-Sport |
| Unit Count | 1.0 count |
| Unit count | 1.0 count |

## Product Details

- **Band material type:** Polyester
- **Brand:** AR LABS
- **Colour:** Night Black
- **Sport:** Multi-Sport
- **Unit count:** 1.0 count

## Images

![– AR LABS 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/71SIwAf227L.jpg)
![– AR LABS Whoop 4.0 Compatible HydroKnit Wrist Band | Fast-Drying, Sweat-Wicking & Ultra-Breathable | Retains Less Moisture for Comfort & Performance - Image 2](https://m.media-amazon.com/images/I/61jNfUSZDYL.jpg)
![– AR LABS Whoop 4.0 Compatible HydroKnit Wrist Band | Fast-Drying, Sweat-Wicking & Ultra-Breathable | Retains Less Moisture for Comfort & Performance - Image 3](https://m.media-amazon.com/images/I/61FGot6+hvL.jpg)
![– AR LABS Whoop 4.0 Compatible HydroKnit Wrist Band | Fast-Drying, Sweat-Wicking & Ultra-Breathable | Retains Less Moisture for Comfort & Performance - Image 4](https://m.media-amazon.com/images/I/61I0lgjaDbL.jpg)
![– AR LABS Whoop 4.0 Compatible HydroKnit Wrist Band | Fast-Drying, Sweat-Wicking & Ultra-Breathable | Retains Less Moisture for Comfort & Performance - Image 5](https://m.media-amazon.com/images/I/81eKKjQtE1L.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.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/702943088-ar-labs-whoop-4-0-compatible-hydroknit-wrist-band-fast](https://www.desertcart.jp/products/702943088-ar-labs-whoop-4-0-compatible-hydroknit-wrist-band-fast)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-31*