A crash pad buyer’s guide

The crash pad is the one bit of bouldering kit that stands between you and the ground, and it is also the bulkiest, priciest single thing most boulderers buy. Get it right and it lasts a decade and saves your ankles a hundred times. Get it wrong and you are lugging an awkward, badly cushioned slab to the crag and resenting it. Since you will probably own it for years, it pays to think before you spend.

There is no single best pad, only the best pad for the climbing you do and the way you get there. So rather than push you towards one answer, here is what each part does and how to weigh it up.

Foam: the bit that matters most

A crash pad is mostly foam, and how that foam is built is the difference between a mat that protects you and one that bottoms out. Almost all pads use a layered system, and understanding it tells you most of what you need to know.

• A firm top layer, usually closed-cell foam. This spreads the impact across the pad rather than letting you punch straight through to the ground. A pad that is soft all the way through feels comfy but offers far less real protection.
• A softer bottom layer, usually open-cell foam. This absorbs the energy of the fall and cushions the landing.

That firm-over-soft sandwich is what stops a fall safely. Beware very cheap pads that are soft throughout. They feel reassuring when you press them with your hand and bottom out hard when you actually land on them from height.

A crash pad is not a mattress. The slightly firm feel of a good pad is the point. It is there to spread force, not to be comfy to sit on.

Size and thickness

Bigger is safer, up to a point, and also heavier and more awkward to carry. The right size depends on what you climb and how far you walk in.

A small to medium pad suits low problems, sit starts and travelling light. A large pad gives you more margin for error and a bigger area to aim for on highballs, but it is a beast to carry any distance. Many keen boulderers end up owning more than one and combining them.

Thickness matters too. Most pads sit somewhere around 10 to 13 centimetres of foam. Thinner pads are lighter and fine for low stuff. Thicker pads give more protection for higher falls. Match it honestly to the height you actually climb, not the height you imagine.

Hinge or taco?

Pads fold one of two ways, and it is worth knowing the trade-off:

The hinge gap is the main thing to be aware of. Landing exactly on the fold of a hinged pad gives less protection, which is why many people pair pads so the seams do not line up. A taco-style pad avoids the seam entirely but is more cumbersome. Neither is wrong; it is about what annoys you less.

Straps, carry and the boring practical stuff

You will spend more time carrying your pad than falling on it, so the carry system matters more than people expect. Look for:

• Comfortable, adjustable shoulder straps that actually pad your shoulders
• A waist strap to stop the pad swinging on longer walk-ins
• A way to close the pad up with your kit inside, so you can carry shoes, chalk and a flask hands-free
• Decent flaps or a closure so your gear does not fall out on the path

A pad that carries badly is a pad you leave at home. If your local bouldering means a long approach, weigh and carry comfort move up the list considerably.

How many pads do you need?

For your first pad, one good medium-to-large mat covers most indoor-adjacent outdoor bouldering and gets you started. As you climb more, and especially as you get on higher or more committing problems, you will want more.

The reason is simple: real falls rarely land you neatly in the middle of one pad. You move sideways, you fall off balance, you top out and step back. Two or three pads let you cover the landing zone, fill the gaps and stack up under the hard moves. This is also where having mates matters, since everyone brings a pad and you build a proper landing between you.

If you are still deciding between buying your own setup and relying on a group, our piece on choosing a crash pad for bouldering goes deeper on matching pads to terrain, and the unwritten rules of sharing a landing are covered in the unwritten rules of the bouldering mat.

A quick buying checklist

Before you hand over your money, run through this:

• Does it have a firm top layer and softer base, not soft throughout?
• Is the size right for the height of problems you actually climb?
• Do the straps look like something you would happily carry for a mile?
• Can you stuff your kit inside and close it up?
• If hinged, are you comfortable with the seam, or would a taco suit you better?

Buy once, buy well

A crash pad is not the place to chase the cheapest option. The very budget pads tend to use poor foam that flattens and bottoms out, which defeats the whole purpose. A solid mid-range pad from a reputable maker will outlast several pairs of shoes and protect you the whole time.

Think about where you climb, how far you walk, and how high you go. Buy the pad that fits that reality rather than the one that looks best in a photo. Then get out there, build a good landing, and fall off in confidence knowing the ground is properly handled.