User Review: Scarpa Booster
Use: Steep sport climbing/ bouldering
Break-in Period: 3weeks
Very specific shoe in my opinion. This shoe was made with 45 degrees and over climbing in mind and that's about it.
Excels at cave bouldering feels like you have hooks on the bottom of your feet but god forbid you try to climb something vertical in them or have to do any kind of smearing.
Now keep in mind that does not I repeat DOES NOT make this a bad shoe it's just a much more specific shoe then an Anazasi or a Moc but if you're looking at a shoe this aggressive you probably already know that.
The heel section while not having and real rubber per say holds very well and I've not felt secure heel hooking with them. Toe hooking is also very nice due to the rubber covered toe box.
As for fit I down sized 1 1/2 from my street shoe and they are a little on the tight side. Even thought they are full leather that have a triangular rubber toe cap that keeps the toe box from stretching too much if I could redo I would probably just go down one size. There is a slight bit of leather near the Achilles tendon that digs in a bit at the beginning but that softens up nice after a few sessions.
Overall great mega aggressive shoe for bouldering and steep sport climbing just know that you're going to need more then one shoe if you like to climb any more than that.