Outdoorville original editorial · updated November 14, 2026 · illustrative field photography
Measure length and width
Measure both feet while standing and use the longer measurement. Compare length and width separately with the exact manufacturer size chart. Example: if your longer foot measures 270 mm, compare that measurement with the chart’s foot-length column, not the boot’s outsole length. Never convert it to a universal shoe size.
Try the socks you will actually wear
Sock thickness changes fit. Try footwear with your intended hiking socks and consider how your feet swell during a long day. Check the manufacturer’s size guidance rather than assuming every brand fits the same.
Check toe room and heel hold
Your toes should not press into the front on a downhill incline. Your heel should feel supported without painful pressure. A longer size is not a substitute for a width that fits your foot.
Waterproof or breathable?
A waterproof membrane can be useful in wet conditions, but may dry more slowly once water gets inside. Breathability, climate and the length of your trip all affect the choice.
Test the fit before a long trip
Wear new footwear for shorter outings first. Stop if you experience pain, numbness or persistent rubbing. Check published return terms before wearing footwear outdoors.