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Rock RatSize guide

Hold your line.

A cedar-and-aluminum shoe tree built for downturned climbing shoes. It holds the shape you paid for and clears the stink between sessions. Your gear is ready when you are.

M, Moss Green selected

$47.99

Size
Size guide
Rock RatFoot length
Small8.6" – 9.6"
Medium (your selected size)9.6" – 10.2"
Large10.2" – 11.4"

Measure standing, heel to longest toe — with your toes curled the way they sit in your climbing shoe. Each size adjusts to 3 settings across its range. Between two sizes? Size down.

How to measure & fit tips
Color

Reviews

4.5 · 2 reviews from verified buyers

FAQ

What size do I need?

Measure your foot in inches — not your shoe size. Climbing shoe sizing is inconsistent across brands, and every climber downsizes differently, so a shoe size tells us almost nothing. Small covers 8.6" – 9.6", Medium covers 9.6" – 10.2", Large covers 10.2" – 11.4". Measure standing, heel against a wall, with your toes curled the way they sit inside your climbing shoe: the tree has to fill the shoe, and your shoe is holding a scrunched foot. The size guide walks through it step by step.

Is Rock Rat adjustable?

Yes. Every size has 3 settings — shortest, middle, longest — so a size is a range, not a fixed length. Set it to what you measured and leave it. If your shoes stretch out over a season, take it up a setting to keep the tension on.

What is Rock Rat made of?

Cedar and aluminum. The cedar pulls moisture and odor out between sessions. The aluminum spine holds the downturn.

How much does shipping cost?

Nothing. US shipping is free and already in the price you see.

What is the return policy?

Unused returns within 30 days for a refund. Size exchanges are free.

No warm-up required

The shape holds. You focus on the send.

Aggressive shoes lose their curve fast. Balled up in a gear bag, the downturn sags and the precision goes with it. Rock Rat is a cedar-and-aluminum tree shaped to your shoe, holding the pitch you paid for between sessions. Less time re-breaking in your shoes. More time on the wall.