Ski Boot Sizing Guide
Complete guide to finding your perfect ski boot fit with mondo conversion, last width, and flex ratings
Standard sizing with broader heel and lower arch profile
Mondo Point
International standard (cm)
Most AccurateUS Size
US men's sizing
Common in USUK Size
UK sizing
UK StandardEU Size
European sizing
European StandardSize Conversion Chart
| Mondo | US | UK | EU |
|---|---|---|---|
| 22.5 | 4.5 | 3.5 | 36 |
| 23 | 5 | 4 | 37 |
| 23.5 | 5.5 | 4.5 | 38 |
| 24 | 6 | 5 | 39 |
| 24.5 | 6.5 | 5.5 | 39.5 |
| 25 | 7 | 6 | 40 |
| 25.5 | 7.5 | 6.5 | 40.5 |
| 26 | 8 | 7 | 41 |
| 26.5 | 8.5 | 7.5 | 41.5 |
| 27 | 9 | 8 | 42 |
| 27.5 | 9.5 | 8.5 | 42.5 |
| 28 | 10 | 9 | 43 |
| 28.5 | 10.5 | 9.5 | 43.5 |
| 29 | 11 | 10 | 44 |
| 29.5 | 11.5 | 10.5 | 44.5 |
| 30 | 12 | 11 | 45 |
| 30.5 | 12.5 | 11.5 | 46 |
| 31 | 13 | 12 | 46.5 |
| 31.5 | 13.5 | 12.5 | 47 |
| 32 | 14 | 13 | 48 |
| 32.5 | 14.5 | 13.5 | 48.5 |
Female Sizing
- •Narrower heel-to-ball ratio
- •Higher arch and instep
- •Wider forefoot relative to heel
- •May need narrower last width
Male Sizing
- •Broader foot shape overall
- •Lower arch profile
- •Standard heel-to-ball ratio
- •Standard last width typically fits
💡 Pro Tip: Use the Boot Advisor tab above to get personalized recommendations based on your gender and specific measurements.
Narrow Last
98-100mm width
Narrow FeetMedium Last
100-102mm width
Most CommonWide Last
102-104mm width
Wide FeetHow to Measure Last Width
Measurement Method
- • Stand with weight evenly distributed
- • Measure widest part of foot
- • Use a flexible measuring tape
- • Measure both feet, use larger
Width Guidelines
- • Under 100mm: Narrow last
- • 100-102mm: Medium last
- • Over 102mm: Wide last
- • Consider foot volume too
Gender-Specific Last Width Considerations
Female Considerations
- • Often need narrower heel cups
- • May require Narrow-Medium last
- • Higher instep accommodation
- • Consider women-specific models
Male Considerations
- • Standard last widths typically fit
- • Broader foot shape accommodation
- • Lower arch profile
- • Standard heel-to-ball ratio
Soft Flex (60-80)
Beginner to intermediate
ComfortableMedium Flex (80-100)
Intermediate to advanced
BalancedStiff Flex (100-120)
Advanced to expert
ResponsiveRace Flex (120+)
Expert and racing
Maximum PerformanceFlex Selection Factors
Ability Level
- • Beginner: Soft flex (60-80)
- • Intermediate: Medium flex (80-100)
- • Advanced: Stiff flex (100-120)
- • Expert: Race flex (120+)
Riding Style
- • Casual: Softer flex
- • All-mountain: Medium flex
- • Aggressive: Stiffer flex
- • Racing: Maximum flex
Find answers to common questions
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