European travelers invented the crampon to help walk on the rough and snowy terrain in much of the northern part of the continent.
Cassin Crampons are one brand of crampon, a piece of equipment necessary for off-trail campers in rough terrain.
Particularly steep grade climbs, such as on mountains, require a special type of crampon with heavier points.
A C1 crampon is designed for very basic hiking while C2 is suitable for moderate skill-level mountaineering.
Because crampons are vital to hikers' safety, purchasing the right brand and type of crampon is imperative.
They should also be crampon compatible, and include detachable gaiters for maximum traction on the ice.
These grades are there to indicate the companion boot with which the crampon works well.
A C3 crampon is a necessity for ice climbing or other extreme forms of mountaineering.
Find out what number boot you have and then use that grade of crampon or lower.
Quality manufacturers include Buffet Crampon, LeBlanc, Yamaha and Selmer.