---
product_id: 535979119
title: "Replacement & Extension Chest Straps – Adjustable Straps for MZ-Switch, MZ-Max & MZ-3 (Small, Medium & Extender Options)"
brand: "myzone"
price: "HK$281"
currency: HKD
in_stock: true
reviews_count: 13
category: "Myzone"
url: https://www.desertcart.hk/products/535979119-replacement-and-extension-chest-straps-adjustable-straps-for-mz-switch
store_origin: HK
region: Hong Kong
---

# Accurate heart-rate tracking Durable, sweat-resistant material Adjustable fit 21.25"–27.5" Replacement & Extension Chest Straps – Adjustable Straps for MZ-Switch, MZ-Max & MZ-3 (Small, Medium & Extender Options)

**Brand:** myzone
**Price:** HK$281
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay strapped in, stay ahead of the pack!

## Quick Answers

- **What is this?** Replacement & Extension Chest Straps – Adjustable Straps for MZ-Switch, MZ-Max & MZ-3 (Small, Medium & Extender Options) by myzone
- **How much does it cost?** HK$281 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/535979119-replacement-and-extension-chest-straps-adjustable-straps-for-mz-switch)

## Best For

- myzone enthusiasts

## Why This Product

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

## Key Features

- • **Comfort Meets Commitment:** Ergonomically designed strap stays secure without distraction, so you focus on results.
- • **Built to Endure Your Grind:** High-quality, sweat-resistant materials withstand daily training and intense movement.
- • **Tailored Fit for Every Move:** Adjustable sizing ensures confident, comfortable wear during all types of exercise.
- • **Always Ready, Never Miss a Beat:** Keep your Myzone MZ-Switch or Max charged and workout-ready with this genuine replacement.
- • **Precision that Powers Performance:** Reliable heart-rate data fuels every workout and tracks your true effort.

## Overview

The MYZONE Chest Strap is a genuine, adjustable replacement designed for Myzone MZ-Switch and Max monitors. Crafted from durable, sweat-resistant materials, it ensures accurate heart-rate tracking and a secure, comfortable fit for chest sizes 21.25" to 27.5". Ideal for committed fitness enthusiasts who demand reliability and comfort in every session.

## Description

Adjustable replacement strap for the MZ-3 or the MZ-Switch Physical Activity Belt. Standard (M) 24.4 to 34.6 inches, Small (S) 21.25 to 27.6 inches or Strap extender PLEASE ENSURE YOU CHOOSE THE CORRECT REPLACEMENT STRAP FOR YOUR MONITOR

Review: Genuine Brand Name replacement option - I was thankful to find this replacement strap available on desertcart for my MyZone heart rate monitor. I usually buy them from the MyZone website periodically, but standard shipping takes a while. It's genuine, and works perfectly. This is my 3rd replacement belt in 5 years of near daily use. The quality holds up for a long time. The elastic does begin to give towards the end of its lifespan but since it's adjustable, it's never a problem in getting the right fit. It also takes a long time before it begins to latch on to body sweat/odor. Definitely follow the directives in washing the belt in the sink after every use with warm water, and gently wring it out and air dry. And wash often in the laundry. I usually wash it between 1-2 times a week. Eventually as the belt ages, even soaking it in concentrated detergent/solution won't fully remove the understandable (at least in my experience) and totally normal odor that comes with the build up of sweat after long term use. So I do try to have 2 belts on hand at all times to alternate between through the week. If you need a replacement belt for your compatible heart rate monitor by MyZone, definitely go for it in buying it here. And buy two while you are at it.
Review: Great replacement strap! - Original strap that came with my monitor finally snapped. This replacement worked great.

## Features

- STAY CONSISTENT & COMMITTED: Whether you’ve lost your strap or want a spare, this replacement chest strap keeps your Myzone MZ-Switch and Myzone Max ready for every workout.
- COMFORT THAT SUPPORTS PERFORMANCE: Designed to feel secure and comfortable, helping you stay focused on effort, not adjustments.
- BUILT FOR REAL TRAINING: Made from durable, high-quality materials that stand up to sweat, movement, and repeated use.
- MOTIVATION THROUGH ACCURACY: A secure fit helps ensure reliable heart-rate tracking—so every Myzone Effort Point reflects your hard work.
- MEDIUM SIZING: Fits chest circumferences from 21.25"–27.5", supporting confident movement during all types of training.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0F3XLMW5R |
| Best Sellers Rank | #27,019 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #98 in Exercise Straps |
| Customer Reviews | 4.6 4.6 out of 5 stars (789) |
| Date First Available  | April 7, 2025 |
| Item Weight  | 0.71 ounces |
| Manufacturer  | Myzone |

## Images

![Replacement & Extension Chest Straps – Adjustable Straps for MZ-Switch, MZ-Max & MZ-3 (Small, Medium & Extender Options) - Image 1](https://m.media-amazon.com/images/I/51e+fBxvkSL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Genuine Brand Name replacement option
*by J***T on April 10, 2024*

I was thankful to find this replacement strap available on Amazon for my MyZone heart rate monitor. I usually buy them from the MyZone website periodically, but standard shipping takes a while. It's genuine, and works perfectly. This is my 3rd replacement belt in 5 years of near daily use. The quality holds up for a long time. The elastic does begin to give towards the end of its lifespan but since it's adjustable, it's never a problem in getting the right fit. It also takes a long time before it begins to latch on to body sweat/odor. Definitely follow the directives in washing the belt in the sink after every use with warm water, and gently wring it out and air dry. And wash often in the laundry. I usually wash it between 1-2 times a week. Eventually as the belt ages, even soaking it in concentrated detergent/solution won't fully remove the understandable (at least in my experience) and totally normal odor that comes with the build up of sweat after long term use. So I do try to have 2 belts on hand at all times to alternate between through the week. If you need a replacement belt for your compatible heart rate monitor by MyZone, definitely go for it in buying it here. And buy two while you are at it.

### ⭐⭐⭐⭐⭐ Great replacement strap!
*by J***H on September 5, 2025*

Original strap that came with my monitor finally snapped. This replacement worked great.

### ⭐⭐⭐⭐⭐ Perfect
*by J***M on June 12, 2025*

I've had my monitor for about 2.5 years and recently it has started to not record here and there during my workouts. I thought maybe it was time to replace it, but read a couple of reviews about switching out the band and decided to try that first. I have used my new band several times now and it works like it is new. No more issues with recording my workouts.

## Frequently Bought Together

- MYZONE Chest Straps
- MYZONE MZ-3 Replacement Charging Cable

---

## 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.hk/products/535979119-replacement-and-extension-chest-straps-adjustable-straps-for-mz-switch](https://www.desertcart.hk/products/535979119-replacement-and-extension-chest-straps-adjustable-straps-for-mz-switch)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-20*