With a one-piece hingeless design, the Alto offers excellent protection for bouldering falls, thanks to a triple-layer foam assembly specifically developed by Petzl for better cushioning. Its patented folding system lengthens the life of the foam and provides a storage space when the crash pad is closed. The carrying system, with its chest and waist adjustments and wide shoulder straps, provides great comfort during the approach.
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|Weight (lbs / kg) |
Weight (lbs / kg)
In pounds and kilograms, the weight, as stated by the manufacturer/brand.
|12.57 lbs / 5.70 kg|
|Number of Foam Layers||three|
|Foam Layout||5" closed fused with .5" closed and 3" open cell foam|
|Fabric|| Top: High-strength Cordura Ballistic Fabric|
Bottom: High-strength Cordura Ballistic Fabric
|Dimensions (ft / m)|
Dimensions (ft / m)
In feet and inches / meters and centimeters, the length, width, and height of the bouldering pad, as stated by the manufacturer/brand
| 3.87 ft x 3.28 ft x 3.90 in|
1.18 m x 1.00 m x 10.00 cm
Warning: This video is dubbed in English. If you're getting antsy, skip to section 7:40-8:15 for one of the most interesting parts, where they show a hardware specific camera inspection.
This video is a really similar vibe to other Petzl RocTrip videos, but it's all bouldering! The athletes/climbers are all decked out with a ton of Petzl pads, and you can see them in various configurations throughout the video. At a touch over 8 minutes I found the video to be a fantastic part of my lunch break and felt like it went by quickly (and entertainingly).
In spite of a few minor drawbacks, for me the Petzl pads offer the best balance of innovative features, comfortable carry, solid durability and good impact protection currently available. Whilst not cheap they do last well and the carry system alone is considerably more advanced and comfortable than any other pad I’ve used. In the Alto and Cirro, Petzl have certainly set a new standard in top-end crash pad design and function.
This pad is best for beginner to expert level boulderers who don't carry the largest of loads but do want to carry a small to medium size load securely and at the same time use its many handy features. The solid foam in the taco-style design is good if you frequent boulders that have a lot of sharp, jagged, rocky landings since a hinge-style pad would be more apt to bottom out.