I bought these straps to attach 2 tents to the handlebars of my Harley on a 2400 mile trip and they seem to handle 75++++ mph and hold up to prolonged exposure to the sun very well. the week. I wouldn't expect the buckles to hold much weight given their size, but the straps are very adjustable so you can use them with a lot of different sizes. These straps worked great for what I needed them for, but I think they would work much better when used as compression straps on a sleeping bag, bed or similar.
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