Ski boots are robust footwear developed especially for skiing, offering protection against jolts and bumps as well as injury from ski edges and other external causes.
The ski boot encloses the foot firmly, while at the same time allowing the movement necessary for skiing techniques, in that the ankle has the room it needs to move, but at the same time allowing the transfer of every steering movement completely to the ski.
 Ski Boots
The relevant national and international guidelines and norms establish the requirements.
Standard Boot Sole dimensions > iSo 5355
The boot manufacturers who display one of the following markings: DIN, ISO, ÖN, UNI guarantee that they use standard norms.
In the absence of any of these, check first with the boot manufacturer. These boots are designed for use with a pair of classic skis, and not with a monoski, snowboard or skiboard.
It is the skier’s own responsibility if (s)he chooses to take the additional risks.
When a pair of used boots is brought in, make sure that any worn parts are still within the norm.
The Alpine boot soles are standardized and bindings are designed accordingly.
The standard norm concerns not only the shape and dimensions as illustrated, but also the friction coefficient of the area of the sole which is in contact with the anti-friction plate on the binding.
 Ski Boot Parts
Modern ski boots provide good foot support. Basic ski boots nowadays have the following parts:
- Ankle flexpoint Usually a flat bolt, allows the skier to move forward and change stance when skiing.
- Boot Buckle These are the devices that tighten the Outer shell to the foot. Most ski boots have five or four buckles.The buckles are what latch the ski boot closed. While there are many styles of buckles, the key components are the ladder, the bail, and the buckle itself. The ladder is the graduated rung that the bail, or wire, hooks onto so that the buckle can close to latch the boot tightly around the foot or ankle. Ski boots may have as many as four buckles, each drawing the boot tightly around a different segment of the foot or ankle.
- Boot liner The liner goes inside the shell, and is where the foot fits. Depending on the liner material,it can tend to be thinner or thicker. The best quality boots are lined with natural wool liners. Most liners have a set of laces of their own.
- Boot Sole The bottom of the ski boot that makes contact with the ski and binding is called the boot sole. Since this is the primary junction point between the boot and the ski it is critical to preserve its condition. Walking on hard surfaces can damage the boots’ sole changing the interaction between the boot and the binding reducing performance and safety. Toe and Heel Lugs are the portion of the sole that the binding grips onto. Some ski boots have replaceable lugs.
- Entry Point Most common Ski Boots have either top or rear entry. Top entry boots use more clips and you need to insert your foot from the top. Mid-entry boots have both a flexible front and back side allowing you to slip your foot into the boot in the middle. Rear entry boots allow you to slide your foot into the boot from the rear. One or two clips are used for fastening the boot and adjusting the fit.
- Flex Adjustment This adjustment allows you to change the amount of resistance to the forward movement of your ankle. You can make this flex stiffer or softer. People often use this feature to compensate the flexibility changes of the boot under cold and warm weather conditions.
- Footbed is the removable platform inside the liner of the ski boot on which the foot rests. Custom footbeds are those molded by a bootfitter to conform to the shape of the skier’s sole for better fit and more precise energy transfer.
- Forward Lean Adjustment This allows you to change the angle that your shin makes with the boot closed. By using this adjustment, you are able to change your stance and center of mass.
- Grab loop on top of the tongue. This loop will help putting the ski boots on. It´s strongly sewn to the body of the outer shell tongue.
- Lateral Upper-cuff Adjustment: An adjustment on some ski boots that allows the user to shift the upper boot. Useful for bowlegged or knock-kneed people who need to adjust their upper boot to the angle of their lower legs.
- Outer shell. Plastic, is the main component that ski boots are made from. depending on brand and design can be more or less flexible.
- Ramp Angle Adjustment Some boots allow you to change the angle in which your feet rest on the sole of your boot. In this way, you are able to shift your center of mass forward or backward.
- Ski-Walk Adjustment This adjustment allows the boot's upper cuff to hinge backward. This will give you the room you need for a more natural walking motion. Although this is a handy feature, most skiers choose for a more solid rear in favor of walking comfort.
- Toe and Heel Lug The portions of the ski boot shell’s sole that interface with a ski binding; must meet industry standards for size; often replaceable in the event of wear.
- Tongue Most ski boots offer two overlapped tongues, inner and outer, to provide great support, stability and comfort.
 Boots Types
|Feel||Soft,||Easy to Flex||Medium||Stiff Difficult to Flex|
|Ability||Beginner – Intermediate||Intermediate - Advanced||Advanced - Expert|
|Speed||Slow||Medium – Fast||Very Fast||Racer Fast|
|Terrain||Groomers / Park and Pipe||Groomers / All Mountain/ Park and Pipe / Off-Piste||Off-Piste/Groomers|
 Also see
- Safety Bindings
- Freestyle Skis
- Safety Bindings
- Anti-vibration plates
- Width of ski surface
- Maximum Height
- Ski Stoppers
- Ski Poles
- Ski Boots
- Chord length
- Thickness of ski boot soles
- Anti-vibration plates
- www.epicski.com Boot Fitting Terms And Glossary 
- ABC of Skiing Ski Boots - Components and Features 
- Wikipedia Ski boot