installation instructions FAQ & sizing
  • Illustrated belt bag with closeup of side-release buckle

    • SIDE-RELEASE BUCKLE

    an essential bag closure

    Click your messenger bag open or closed with one hand. Easily adjust your belt bag strap or press the buckle sides in to quickly remove the bag. Want to add a sternum strap to a backpack? A side-release buckle plus some webbing is your answer!

    A side-release buckle is made up of two halves that securely click together. You squeeze the sides in to release and separate the two buckle parts. This versatile piece of hardware can be used as a bag closure or for 2-piece adjustable straps that can come apart.

    It is also referred to as: adjustable slider, triglide, adjuster or adjustable buckle

    Size Matters

    Single and dual adjust side-release buckles are sold by width, commonly ranging from 19 to 38mm (3/4″ to 1 1/2 inches).

    When you buy a side-release buckle, the size that is indicated refers to the inner width of the adjuster or strap feed bar. This is the most important measurement since you have to match it to the width of the webbing or strap you intend to use with it.

    Your webbing or strap should be the same width as or slightly narrower than the adjuster or strap feed bar.

    Illustration of side release buckle sizing

    Question: How much tolerance is acceptable for a good strap-to-buckle fit?

    Answer: You want your strap to be the same width or even a little narrower than the buckle width. If the strap is too wide, it will bunch up on the adjuster and strap feed bars.

    Question: What about the length of the buckle?

    Answer: That’s your preference! First pay attention to the width and whether it’s a single or dual adjust, then see if the overall length is aesthetically suitable for your project.

    Common Styles

    • Side-release buckles come in many shapes, sizes, and materials, as well as single or dual adjust versions. Single adjust has an adjustable feed bar on end and a fixed strap feed bar on the other. If you only ever need to adjust one side, as when using it for a bag closure or quick release strap, select a single adjust buckle. Dual adjust have adjusters at both ends. Select this option if you need strap length adjustability at both ends of the buckle.

    While most commonly available in plastic, they are also available in metal with various finishes for a higher-end look and feel.

    How to Apply

    Illustration of Side Release Buckle installation step 1

    Step 1

    Gather your two strap pieces: longer for the adjustable side, and short for the non-adjustable side. Keep the buckle right-side-up for all steps.

    Illustration of Side Release Buckle installation step 2

    Step 2

    Feed the short, fixed-length strap through the non-adjustable side of the buckle and stitch into place.

    Illustration of Side Release Buckle installation step 3

    Step 3

    Feed the underside of the long strap through the inner adjustable side, then feed back through the outer side. Do not stitch this side.

    Illustration of Side Release Buckle installation step 4

    Step 4

    Finish your strap by adding a strap slider or any other option you need for your bag.

    Inspiration