The Hunza Gaiter is ideal for ankle boots and approach shoes, keeping crud out of the ankle and various fine debris out from your laces.
Although there is a positive hook on the front, I would be tempted to add something ‘low tack’ around the heel section to help prevent it riding up with walking. Maybe some kind of sealant depending on your shoe type. (Check you are happy with sizing first as this will effect your warranty)
Secondly the provided shock cord may fray over harsh ground, therefore always carry some Dyneema cord (or similar) as a back up on longer trips.
The Hunza Stretch Mid Gaiter is a waterproof and highly breathable gaiter, in a 3L Stretch Watergate™ fabric, designed for year-round wet weather use.