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  • Includes a 3/4 in. sternum strap buckle with built-in safety whistle, quick attach tri-glide and detailed instructions for installation
  • Stabilize your load and add a safety whistle with this sew-free, sternum strap buckle replacement kit


View all Gear Aid Buckles

REI membership


Best Use Camping
Material(s) Plastic
Dimensions 2.44 x 1.06 x 0.37 inches
Weight 0.35 ounce
Rated 5 out of 5 by from This is a quality fastener. I bought this kit last minute to repair a sternum "SR T-LOC" that I lost on a previous trek. REI store did not have the exact replacement part, so I fastened the tri-glide and buckle together with three zip ties. Still holding!(see picture)
Date published: 2014-10-09
Rated 5 out of 5 by from Survival Counts I filed off all the buckle parts to release a super loud and extra small whistle for my Altoids Smalls survival kit. A voice can fail but this whistle won't. Thanks REI
Date published: 2017-04-11
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How loud is the whistle?

Asked by: Paddler/Poet
The whistle is moderately loud, but we have not compared it against other safety whistles.
Answered by: REIservice
Date published: 2016-07-06

Does the sternum buckle kit include the 3/4" strap so that I can install this onto a backpack that does not have a strap?

Asked by: Tahoe Girl
The Gear Aid Whistle Sternum Strap Buckle Kit does not come with any webbing or straps.
Answered by: REIservice
Date published: 2015-09-20
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