Differences Between Ski Helmets and Climbing Helmets

Ski helmets differ from climbing helmets based on the types of hazards present in each sport.  Ski helmets protect skiers from impact while falling or hitting into trees or other skiers.  Rock or mountain climbing helmets protect from impact from falling rocks or debris.

Design and Materials

Although the materials and design of ski and climbing helmets are comparable, some ski helmets are made to fit a hat under the helmet.  The shell is the outer layer of the helmet comprised of an ABS high-impact resistant plastic that spreads out the force of impact to the surface.  The inner portion of both helmets is made from expanded polystyrene foam that closely resembles Styrofoam.  This foam absorbs the force from impact to reduce damage to the brain.  Climbing helmets do not come down over the ears, but ski helmets do come with ear protection flaps.

Accessories

Climbing helmets are typically lighter weight than ski helmets.  This is necessary for rock climbers because of the hazards of climbing with added weight.  An accessory available on climbing helmets is a clip that holds a headlamp to the helmet.  Ski helmets are typically worn during cold temperatures.  Some accessories available in ski helmets consist of ear and headliners that aid in keeping the skier warm.  This is in contrast with climbing helmets that have ventilation built-in to keep the climber cool in warm weather. 

Safety Certifications

All snow-based winter sport helmets, including ski helmets are certified based on the ASTM F2040 certification in the United States.  The International Mountaineering and Climbing Federation (UIAA) certify mountain, cave, and ice climbing helmets.