---
product_id: 263493620
title: "YYST Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing"
brand: "yyst"
price: "A$0"
currency: AUD
in_stock: false
url: https://www.desertcart.com.au/products/263493620-yyst-sternum-strap-backpack-chest-harness-for-backpack-with-20mm
store_origin: AU
region: Australia
---

# Built-in elastic for comfort Adjustable 9"-17.5" fit range Durable 25MM nylon webbing YYST Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing

**Brand:** yyst
**Price:** A$0
**Availability:** ❌ Out of Stock

## Summary

> 🖤 Secure your style, carry with confidence.

## Quick Answers

- **What is this?** YYST Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing by yyst
- **How much does it cost?** A$0 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/263493620-yyst-sternum-strap-backpack-chest-harness-for-backpack-with-20mm)

## Best For

- yyst enthusiasts

## Why This Product

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

## Key Features

- • **Custom Fit Comfort:** Adjustable length from 9" to 17.5" ensures a perfect, secure fit for any body type.
- • **Unmatched Strength:** 25MM webbing and buckle deliver superior durability over standard 20MM options.
- • **Pressure-Relief Elastic:** Integrated elastic section reduces chest pressure for all-day wearability.
- • **Sleek Minimalist Design:** Matte black finish complements any backpack style without bulk.
- • **Universal Compatibility:** Fits most 3/4" (20MM) and 1" (25MM) shoulder straps for versatile use.

## Overview

The YYST Sternum Strap Backpack Chest Harness is a robust, adjustable nylon strap designed to enhance backpack stability and comfort. Featuring a durable 25MM webbing and buckle, it fits shoulder straps up to 25MM wide and includes an elastic segment to reduce chest pressure. Its sleek black design and universal compatibility make it an essential upgrade for professionals seeking ergonomic support and style.

## Description

You are purchasing Nylon webbing Sternum Strap.

## Features

- Quantity : 1 piece for one backpack . Color : black. NO BACKPACK. Backpack is just for display.
- 25MM Webbing - Our webbing is 25MM ,our buckle is also 25MM. More Stronger and more Durable than 20MM buckle.
- Suitable for webbing on the backpack up to 25MM. Exactly suitable for 3/4" Wide (20MM) or 1" Wide (25MM). Most of the webbing on the shoulder strap is 1"(25MM) wide.
- Adjustable - The sternum strap is adjustable . Please adjust it. Adjustable from 9" to 17.5" (23 CM to 45 CM).
- Elastic - One piece of elastic has been attached on the strap. You will not feel too much pressure on your chest.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | black |
| Material Type | Nylon Plastic buckle |
| Batteries Included? | No |
| Brand | YYST |
| Manufacturer | YYST |
| Item model number | YYST-2 |
| Package Dimensions | 10.4 x 6.3 x 3.2 cm; 45.36 g |
| ASIN | B07D3RGMNM |

## Images

![YYST Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing - Image 1](https://m.media-amazon.com/images/I/514ys683sCL.jpg)
![YYST Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing - Image 2](https://m.media-amazon.com/images/I/61foPJLhNLL.jpg)
![YYST Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing - Image 3](https://m.media-amazon.com/images/I/51oXoM6gFkL.jpg)
![YYST Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing - Image 4](https://m.media-amazon.com/images/I/617C3Gz9XsL.jpg)
![YYST Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing - Image 5](https://m.media-amazon.com/images/I/61++vt-+X-L.jpg)

## Questions & Answers

**Q: Is it stretchy or sturdy?**
A: It has been sturdy for me, not really stretchy. But easily adjusted to different lengths.

**Q: Is this strong enough to ruck 30+ lb? Is there any warranty if the buckle breaks?**
A: I would say it would work if your straps are thick on your pack (the straps that will slide in the buckles). The buckles that slide on my bag keep popping off because my webbing that I'm using on my bag is thinner than the plastic "slide on" buckles, so they keep popping off, it's pretty annoying.

**Q: How narrow can this be tightened?**
A: Not much less than 3 inches between backpack straps. The buckle itself takes up about 2 in

## Frequently Bought Together

- YYST Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing
- Wisdompro Backpack Chest Strap, Heavy Duty Adjustable Backpack Sternum Strap Chest Belt with Quick Release Buckle

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**Shop now:** [https://www.desertcart.com.au/products/263493620-yyst-sternum-strap-backpack-chest-harness-for-backpack-with-20mm](https://www.desertcart.com.au/products/263493620-yyst-sternum-strap-backpack-chest-harness-for-backpack-with-20mm)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-11*