Biothane 25mm collar with extremely lightweight 3DSR buckle made from military grade polymer, it won't even break if shot at close range. 

Three Dimension Side Release

- Easy release action, EVEN WHEN HEAVILY LOADED
- 135kg Load capacity
- Shaped to Fit the hand for fast "Squeeze" Release
- Easy to Find and Release while Wearing Gloves
- Exceptionally tough the design ensures its resistant to crush and bend and also will work in the most extreme tempratures