How to Choose a Bouldering Crash Pad: Size, Foam & Safety
A crash pad is the one piece of outdoor bouldering gear you can't fake. Here's how to pick size, foam type, and features so your landings actually protect you.
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When you take bouldering outside, the crash pad is your safety system. Get it wrong and a good session ends at the ER. Here's how to choose a pad that actually protects your ankles, back, and stoke.
Foam is the whole point
A good pad uses layered foam: a firm, closed-cell top layer that spreads impact so you don't bottom out, over a softer open-cell base that absorbs it. Cheap single-density pads bottom out and transmit the fall straight to your joints. Closed-cell over open-cell is the standard for a reason.
Size: bigger isn't automatically better
- Standard pads (~4 x 3 ft) balance coverage and carryability — a solid first pad.
- Larger/highball pads give more coverage for taller problems but are heavier to hike.
- Most outdoor boulderers eventually own two pads and stack/overlap them to cover the fall zone and seams. Start with one good pad; add a second later.
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Fold style: taco vs. hinge
- Hinge pads fold flat with a crease — easy to store, but the hinge is a potential gap (cover it with a second pad or a corner).
- Taco pads (single folded piece) have no hinge gap but are bulkier and can retain a curve. Both work; know where the weak spot is and don't land on it.
Features that matter
- Comfortable carry straps / suspension — you'll hike this thing to the boulders. A pad you hate carrying stays home.
- A flap or extension to close over the hinge and carry gear inside.
- Durable bottom fabric — it gets dragged over rock and dirt constantly.
Using it safely (the part gear can't buy)
- Read the fall and place the pad under the crux move and the likely swing.
- Spot your climber — guide them onto the pad, protect the head/spine, don't try to catch them.
- Cover seams and gaps when stacking multiple pads.
- Move the pad as the climber moves across a traverse.
Bottom line
Buy a layered closed-cell/open-cell pad with comfortable carry straps, start with one good standard pad, and learn to place and spot well. The best pad in the world doesn't help if it's in the wrong spot — technique and a good spotter finish the job.
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