We found a WW II snap hook that we really liked and adapted it to our needs.
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Aluminum Buckles

When I joined the Keen Bag Project in 2007 I was excited to see that they were using Aluminum Buckles, Many of the styles shown here were designed for the Keen Bags. One of the things I love about aluminum buckles is that aluminum is one of the most easily recyclable materials on the planet. Plus they tend to last forever. I really hate products that fall apart.

Jeff D Levis
Owner J Levis Design Group Thornton, CO