---
product_id: 69313035
title: "Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing"
brand: "yyst"
price: "63 zł"
currency: PLN
in_stock: true
reviews_count: 12
category: "Yyst"
url: https://www.desertcart.pl/products/69313035-sternum-strap-backpack-chest-harness-for-backpack-with-20mm-25mm
store_origin: PL
region: Poland
---

# Adjustable 9"-17.5" fit 25MM ultra-strong webbing Elastic comfort stretch Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing

**Brand:** yyst
**Price:** 63 zł
**Availability:** ✅ In Stock

## Summary

> 🎒 Elevate your carry game — comfort and strength that moves with you!

## Quick Answers

- **What is this?** Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing by yyst
- **How much does it cost?** 63 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/69313035-sternum-strap-backpack-chest-harness-for-backpack-with-20mm-25mm)

## 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 sternum strap extends from 9" to 17.5" (23-45 cm) ensuring a perfect, personalized fit for all-day wear.
- • **Unmatched Durability:** 25MM webbing and buckle engineered for superior strength and longevity over standard 20MM options.
- • **Pressure-Free Support:** Integrated elastic segment absorbs chest pressure, delivering ergonomic comfort during long treks or daily commutes.
- • **Lightweight & Discreet:** At just 1.6 ounces, this sleek black harness adds stability without bulk, blending effortlessly with your professional or adventure-ready look.
- • **Seamless Compatibility:** Designed to fit most backpacks with 20MM or 25MM webbing, including tactical and outdoor gear for versatile use.

## Overview

The YYST Sternum Strap Backpack Chest Harness is a robust, adjustable accessory designed to enhance backpack stability and comfort. Featuring durable 25MM webbing and buckle, it fits shoulder straps up to 25MM wide and includes an elastic section to reduce chest pressure. Lightweight and compatible with most backpacks, it’s ideal for professionals and outdoor enthusiasts seeking ergonomic support and reliable performance.

## Description

desertcart.com : YYST Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing : Sports & Outdoors

Review: Great Sternum Strap - Works great for my Goruck Rucker 21L. It was easy to put on and seems to be the same design and quality of the Goruck brand. It really improves the weight distribution and feels much better going for long walks now.
Review: Works well - I bought this for my Yeti backpack soft cooler. Can't believe that for the price, Yeti did not include a chest strap. This strap fit the Molle's on the shoulder strap perfectly. It seems sturdy and has good adjustability.

## 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 |
|---------------|-------|
| ASIN  | B07D3RGMNM |
| Best Sellers Rank | #35,661 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #108 in Tactical Bag Accessories |
| Customer Reviews | 4.4 4.4 out of 5 stars (369) |
| Date First Available  | August 8, 2015 |
| Is Discontinued By Manufacturer  | No |
| Item model number  | YYST-2 |
| Manufacturer  | Yi Ya Su |
| Package Dimensions  | 4.09 x 2.48 x 1.26 inches; 1.6 ounces |

## Images

![Sternum Strap Backpack Chest Harness for Backpack with 20MM or 25MM Webbing - Image 1](https://m.media-amazon.com/images/I/514ys683sCL.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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Sternum Strap
*by L***N on July 31, 2025*

Works great for my Goruck Rucker 21L. It was easy to put on and seems to be the same design and quality of the Goruck brand. It really improves the weight distribution and feels much better going for long walks now.

### ⭐⭐⭐⭐⭐ Works well
*by G***S on May 26, 2024*

I bought this for my Yeti backpack soft cooler. Can't believe that for the price, Yeti did not include a chest strap. This strap fit the Molle's on the shoulder strap perfectly. It seems sturdy and has good adjustability.

### ⭐⭐⭐⭐ Fits well
*by T***B on November 13, 2024*

Does as described. Fits well.

## 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

---

## 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.pl/products/69313035-sternum-strap-backpack-chest-harness-for-backpack-with-20mm-25mm](https://www.desertcart.pl/products/69313035-sternum-strap-backpack-chest-harness-for-backpack-with-20mm-25mm)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-09*