Your waist fits.
Do your thighs?

One clothing size can hide two very different measurements. Compare current harness charts across five brands before you step into the shop.

Find the harnesses that fit both.

A shortlist, not a guess.

We check your waist and thigh against 47 published rules from ten current harness models.

  • Both measurements must fit
  • Overlaps stay visible
  • Conflicts fail closed

Five brands.
Five sizing patterns.

Compare all brand charts →

Not your trouser size.

  1. WaistWrap a soft tape around the point where the waist belt will sit, above your hip bones.
  2. ThighMeasure the fullest point of one upper thigh without pulling the tape tight.
  3. LayersMeasure in the clothing you expect to climb in. Winter layers can change the shortlist.

Charts narrow the field.
Hanging confirms the fit.

47 sourced rulesNo generic clothing conversion and no inferred thigh ranges.

Conflicts stay conflictsA waist-only match never becomes a recommendation.

Current and versionedEvery rule carries its source and review date.