I wear size 3 pants and ordered a 28-30 inch belt. It fits exactly what I need. I have another elastic belt (source and manufacturer unknown) and it measures 42 inches and is too long, so I went down a size when ordering this belt. I might have been ok with the next size up. I love the elastic straps for walking and hiking. They hold my pants without drawstrings at the waist over my hips.
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