Boots are sized in Mondo sizing. Here is a sizing chart for your convenience. In general, beginners want a boot that directly corresponds to their street shoe size. Intermediates should go a half size smaller. Experts should go a full size smaller.
| Mondo Size | Men (US) | Women (US) |
| 21 | - | 4 |
| 21.5 | - | 4.5 |
| 22 | 4 | 5 |
| 22.5 | 4.5 | 5.5 |
| 23 | 6 | - |
| 23.5 | 5.5 | 6.5 |
| 24 | 6 | 7 |
| 24.5 | 6.5 | 7.5 |
| 25 | 7 | 8 |
| 25.5 | 7.5 | 8.5 |
| 26 | 8 | 9 |
| 26.5 | 8.5 | 9.5 |
| 27 | 9 | 10 |
| 27.5 | 9.5 | 10.5 |
| 28 | 10 | 11 |
| 28.5 | 10.5 | 11.5 |
| 29 | 11 | 12 |
| 29.5 | 11.5 | - |
| 30 | 12 | - |
| 30.5 | 12.5 | - |
| 31 | 13 | - |
| 31.5 | 13.5 | - |
| 32 | 14 | - |
The higher the number, the stiffer the boot. Skiers lighter in weight and beginner to intermediate skiers tend to prefer a boot with a softer flex. Conversely, heavier and more aggressive skiers are more likely to prefer a stiffer boot.
| Ability Level | Men`s Flex | Womens`s Flex | ||
| Beginner | Less than 100 | Less than 85 | ||
| Intermediate | 100-110 | 85-95 | ||
| Advanced | 110-120 | 95-105 | ||
| Expert | 130 | 105-115 | ||
| Racing | 130+ | 115+ |
Measured in millimeters, the volume refers to the last, or width, of the boot. Narrower boots are best for expert, aggressive skiers, who care more about performance than comfort. Foot width factors in as well, with narrow-footed skiers prefering boots with narrower lasts. Keep in mind that in general, the narrower the boot the less comfortable it will be.
| Foot Width | Last Width (in mm) | |
| Narrow | less than 99 | |
| Average | 99-102 | |
| Wide | 103 and over |
"Tech Fittings" are metal inserts in the toe and heel of a boot that allow it to lock into tech bindings. Tech bindings, also commonly called AT or pin bindings, are designed for uphill access and ski touring and require that your boot has "tech fittings" to be compatible.
A demo ski is a used ski that comes with bindings on it. Some bindings can be adjusted to any boot size, others are fitted to a specific boot size (you can find that information under "condition". Buying used saves resources, and is one of the best ways a skier can lower their environmental footprint. Our used skis come from demo fleets and customers (like you!) through our customer trade in program.
New skis have never been skied and never seen snow. New skis often come without bindings, but others come as a "system set" and are listed with "bindings" in the product title.
Alpine touring boots are far better for backcountry skiing than regular ski boots. AT boots feature walk mode and light weights, plus soles made for walking.