Climbing helmets come in two main types. Helmet makers use different terms for each type of helmet, so focus instead on telltale construction details like shell hardness, foam thickness and number of vents.
This type of durable, traditional lid features an extra-hard outer shell, typically ABS plastic, that’s paired with a strap suspension system and a thin foam liner. Other terms for these helmets are suspension helmets and hybrid helmets. This type of helmet offers two primary advantages:
Shelled Foam Helmets
This lightweight style features a thick layer of impact-absorbing polystyrene or polypropylene foam protected by a thin polycarbonate shell. Impact forces are dissipated via deformation. This type of helmet offers two primary advantages:
Choosing Helmets by Climbing Type
Mountaineering and multi-pitch trad climbing: When you're hauling a lot of gear and wearing a helmet for long periods of time, low weight and ample ventilation are important. So consider a shelled foam helmet.
Also, choose a bright helmet color for mountaineering. Whiteout conditions are always a possibility and you want your team members to be able to spot you.
Ice climbing: Because you’ll be vulnerable to a lot of falling debris, look for a shelled-foam model with minimal ventilation area. You don’t need much cooling, or want a lot of openings to let in whatever might rain down on you.
Warm-weather sport climbing: Look at shelled foam models with the greatest number of vents.
Cool-weather and single-pitch sport climbing: Because you can take the helmet off while waiting your turn to climb or belay, you can choose to trade the comfort of a shelled foam model for the durability and affordability of a hardshell.
Belaying: Protection from rockfall and dropped gear is a concern, so it's important that you also wear a helmet while belaying. No special helmet is required: Simply wear the lid you brought for climbing.
Indoor climbing: Gym rules and liability waivers will dictate whether a helmet is required. Because rockfall isn’t a concern, though, a cool, lightweight shelled foam helmet is the logical choice if you’re required to wear one.
Additional Climbing Helmet Considerations
Almost all helmets have headlamp clips now, so it’s less of a consideration. If you plan on long climbs with predawn starts or post-sundown finishes, these clips are essential.
Even when friends or reviewers suggest that one helmet is the best, it won't be right for you if it doesn't fit correctly. If you can’t get a good fit with your chosen helmet, you need to try another model. The best way to assess fit is to try on different helmets in a climbing specialty store.
Check for a secure fit: Start by placing the helmet squarely on your head, with the front rim straight across your forehead. After you adjust the fit, but before you buckle the chin strap, shake your head from side to side and tilt your head slightly back. The helmet should remain snug.
Check and adjust chin straps: After they’re buckled you should have no slack and the front and rear straps should form a "Y" around each of your ears.
Check the ease of adjustment: Play with the adjustment system to see how intuitive you find it and how easy it is to fine-tune the fit. Ease of adjustability is key for cold conditions because you need to readjust fit to accommodate a skullcap underneath the helmet.
Climbing Helmet Lifespan
Retire any helmet that’s dented, cracked or damaged—including the straps. Even in the absence of visible damage, retire yours after any incident where you think to yourself, "I would have been seriously messed up if not for my helmet."
Do these checks before every climbing trip:
Is the outer shell free of any noticeable damage? Minor dings are OK; major dents are not.
Are the buckle and other hardware in good working order?
Is the webbing in good shape and free from frays and tears?
Is the foam casing secure inside the helmet's shell?
If the answer to any of these questions is “no,” then get a new helmet. In addition, you should stow your helmet inside a climbing bag to protect it from banging against hard surfaces, which makes it vulnerable to chipping and cracking.
Even if it’s never impacted, retire a helmet within 10 years. The sun’s UV rays slowly degrade materials, so if you climb frequently, cut this lifespan time in half.
Your safety is your responsibility. No article or video can replace proper instruction and experience. Make sure you practice proper techniques and safety guidelines before you climb.