Your path: Home / Learn / Climbing / Ice and Mixed Climbing / Choosing Crampons
Despite the vast selection of crampons available you can quickly figure out the type you need based on the activity and terrain you plan to take on, and the type of footwear you'll be wearing.

Rigid frame crampon
Designed for front pointing up steep waterfall ice and overhanging mixed routes, these crampons have aggressive (thin, sharp, serrated) front points and forward swept secondary points. They often have rigid frames that provide a solid platform so you don't fatigue your calves and ankles while hanging out on the front points.
Rigid crampons make glacier walking awkward because they don't allow your feet to flex as you stride. Wearing a fully rigid technical crampon with flexible boots will cause the crampon to fall off or eventually bend, weaken, and possibly break.
Semi-rigid, versatile crampons for use on a wide variety of snow and ice routes. They offer enough support to tackle occasional vertical ice pitches. This type of crampon is ideal for 90% of alpine and glacier applications.
The design of mountaineering crampons varies, some are more suited to general mountaineering, including non-technical glaciated, icy and snowy terrain. Some are better for steeper, more sustained climbing.
Hinged frame crampon
These have flexible or hinged frames that allow a natural walking stride and can be worn with softer boots. Hinged crampons are best for trekking and hiking on low-angle snowfields and glaciers. However, if you encounter some steeper terrain you should be able to get by. Especially if you are wearing a good quality pair of boots.
The system you select must be compatible with the boots you plan to wear. If you wear your crampons for anything more than short traverses over snow or ice, you really need boots with substantial stiffness in the sole and thick leather or plastic uppers for support. For step-in crampons, your boots must have prominent welts and attachment grooves in toes and heels.
Take your boots with you to the store when selecting crampons to make sure they fit properly. Once you've got your crampons home, practice attaching them and taking them off. Don't wait until you're on a cold, dark, icy slope with numb fingers and a heavy pack to learn how to adjust your crampons.
A wire toe bail fits over the front boot welt and a heel bail with a tension lever snaps into place on the heel welt. An ankle strap is also typically part of the system. Popular due to its simplicity and speed, but requires boots with pronounced heel and toe welts.
Characterised by a flexible front strap (nylon, plastic or neoprene) and a step-in type heel clip.
Simple and secure, strap-on systems are also versatile because they don't require boots with heel or toe welts. Hinged crampons with strap-on bindings can be worn with hiking boots, although most hiking boots do not have stiff enough midsoles to hold crampons securely for extended periods of time. Also, soft leather or fabric uppers compress easily under crampon straps and can cause discomfort and cold feet. These are useful for winter walking and trekking, but not the best choice for sustained steep-ice.