Will it keep dirty shoes away from my clothes in a suitcase?

Yes. The pouch encloses the shoes so soles and dust don't touch clothing packed around it. It is a barrier, not a sealed bag.

Does it protect shoes from being crushed?

No. It is a soft pouch with little padding, so it separates and covers shoes but won't stop them from being squashed in a packed bag.

It is not ventilated, so moisture stays inside. Air shoes out first, or choose a pouch with mesh panels for gym use.

One pair. It is sized for a single pair of shoes rather than several.

No. It also works for storing shoes at home, in a closet or under a bed, and for keeping a gym bag organized.

At Peak Design, for $29.95, as of our latest check.

2 stores we checked sell it, including Peak Design, Amazon.

$29.95at Peak DesignChecked Nov 13

Compared across 2 stores. Prices are checked against each store and labelled with when.

It checks today's price at every store, compares the alternatives and answers in about a minute.