Clever elasticized panel with a universal zipper on each side simply zips into your RHC show chaps to instantly add up to 2" of ease all the way down the leg. Sold by the pair and fits most chaps. Measure the zipper on your chaps to get the correct length.
Now we have 28"
to see if these would work for you - look at your chap zipper and on the bottom side they should have a number. These are the numbers on ours are listed below Make sure they match
28" to 36" are YKK #10
38" and 40" are YKK #7