Christy Sports – Skiing & Snowboarding Clothing

How to Choose the Right Ski Boots

When you're out there on the mountain, your boots are the connection between your body and skis. The right fit is essential for giving you the perfect amount of control on the slopes but also keeping you comfortable throughout the day. It's not as simple as buying a pair of sneakers, though, so we put together this guide to help you find the best fitting boots.


The width or last of the ski boot is the measurement of the widest part of your foot (the forefoot/ball of your foot). Boots generally come in three last categories; a last being the 3-dimensional form used to shape the inside of a ski boot and is shaped like a human foot.


Low Volume

96mm to 99mm last

A or B width in street shoes


Average volume

100mm to 102mm last

C or D width in street shoes


High volume

102mm+ last

E or higher widths in street shoes


The flex rating of a ski boot ranges from soft to very stiff and refers to how easy or difficult it is to flex the boot forward. Your experience level, as well as your height and weight, play a role in which flex you choose.

Typically, beginner Skiers should use a softer flexing boot, while a more advanced skier will want a stiffer boot. One thing to keep in mind is boot stiffness is relative to the temperature outside.

If you are shorter/lighter or taller/heavier than average, you may also want a different flex than your skill level might indicate due to how much leverage it requires to flex the boot.

The flex index typically ranges from 50 (soft) to 130 (very stiff), but every brand is different so try a few on to see what feels best. Some boots allow a flex range, and have the ability to stiffen or soften by removing pins, or other pieces.


Your boots are the most crucial piece of equipment you have, so we take the time to connect with you on a personal level and get it right. Christy Sports guarantees the fit and comfort of every boot we sell. Test run didn’t go so well? Bring them back to your boot fitter for adjustments. Still not quite right? Bring them back again. We’ll adjust until they feel perfect or we’ll refund you for a full year. You’ll never be stuck with something that doesn’t feel right when you purchase from Christy Sport