1
$ 119.99 1 item

Subtotal: $ 119.99

View cartCheckout

1
1

Replacement Sternum Strap for Mountain Series Pack

(19 Reviews)

2-piece (left/right) slider sternum strap with emergency whistle buckle. Compatible with f-stop packs with rail sliders on shoulder straps.

For f-stop packs with ladder style attachment use this option.

$ 9.99

Customer Reviews

Customer Reviews

Bullet skier
Rating: 5/5
Fits Dakine Helipro 24!
Got it on easy by flattening the rail at the top for 1/4” using vise grip needle nose pliers & using vise grip clamp to hold the shoulder strap to my bench top, so I can have one hand to pry the clip with a screwdriver & the other to push it onto the rail with the vise grips. Still have to take care to not slip with the driver & stab your knuckle, but it is way more under control & your hand is further away.
Tue Jul 14 2026 02:33:11 GMT+0000 (Coordinated Universal Time)
DALE BEDARD
Rating: 5/5
Works
No problems, came and installed on backpack
Fri May 22 2026 13:03:00 GMT+0000 (Coordinated Universal Time)
Robert Buchholz
Rating: 5/5
Bought a replacement strap for three bucks and now they don’t stop sending me reviews!
Mon May 11 2026 17:05:00 GMT+0000 (Coordinated Universal Time)
Tony Johnson
Rating: 5/5
perfect replacement
soaked in very hot water for 3-4 minutes before using a wooden chopstick to pry open enough to stick into the track. Once in it works great!
Wed May 06 2026 16:51:00 GMT+0000 (Coordinated Universal Time)
David Witt
Rating: 5/5
awesome replacement sternum strap
awesome replacement sternum strap. even better than the original on my backpack
Tue Mar 10 2026 21:23:45 GMT+0000 (Coordinated Universal Time)
Thomas E. Siverling
Rating: 5/5
Great strap!
We bought a discount REI brand bag that was missing a it's sternum strap and this was a great fix for a good price.
Sat Feb 28 2026 05:50:52 GMT+0000 (Coordinated Universal Time)
Bennett Weber
Rating: 5/5
Perfect Replacement for Rework Toshi Sternum Strap
I found the tiny sternum strap on the Toshi Rework backpack too small, so I looked for a replacement. However, this rail-type sternum strap is hard to find. I stumbled on the F-Stop sternum strap and it fits the backpack perfectly and is much easier to use. .. no more fumbling with a tiny buckle
Mon Feb 23 2026 14:50:53 GMT+0000 (Coordinated Universal Time)
Benn
Rating: 5/5
Fits Rework Toshi backpack
Replaced the Barbie sized sternum strap on the Rework Toshi 20L bag, fits perfectly
Fri Jan 16 2026 02:25:17 GMT+0000 (Coordinated Universal Time)
Aleksei Nicklas
Rating: 5/5
Doesn’t fit Osprey
Seems well made and it’s certainly not f-stop’s fault but if you’re looking for a replacement sternum strap for an Osprey pack this won’t fit although it looks similar
Tue Nov 25 2025 18:44:14 GMT+0000 (Coordinated Universal Time)
Robert Uyeki
Rating: 5/5
Fits my REI pack
One of the sternum straps on my REI pack kept pulling out. It took a little elbow grease, but I was able to swap out both sides with this replacement strap in less than 2 minutes without needing to use any tools. Definitely better than the original strap!
Mon Nov 17 2025 02:09:32 GMT+0000 (Coordinated Universal Time)
D4EA

Design 4 Environmental Accountability

D4EA™ brings Design Thinking to the entire Product Journey (Cradle to Grave) to minimize the Total Environmental Impact.  Here are the pillars of our D4EA™ mindset:

  • Reduce: Purpose Built, Mission Driven - Engineered for the most demanding situations, our TCO & 5x field life is more than 5x
  • Reuse: Modular System
  • Repurpose: Packaging
  • Repair: Functional and Repairable products
  • Recycle: upPACK - Send it back to us when finished to recycle
Learn More
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram
1