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Fit and sizing

UK, EU and US sizes, toe room, wide fits, lacing and the fit problems that cause blisters and heel lift.

Toe room
About 15 to 20 mm
One UK size
8.47 mm (1/3 inch)
Detailed view of a hiking boot stepping on a woodland path with lush green foliage
Photo: Sidde on Pexels

Measure your feet in the evening, in the socks you walk in. Push your foot forward in the unlaced boot: a finger, roughly 15 to 20 mm, should fit behind your heel.

Size charts vary between brands, so treat any conversion as a starting point. The size converter gives UK, EU, US and Mondopoint from your foot length.

Common mistakes

  • Buying boots in the morning, when feet are smallest.
  • Fixing heel lift with a smaller size instead of a heel-lock lacing.

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