Are these slippers comfortable for a full evening?

They suit seated events and short walks. The 10.5cm stiletto and lack of a back strap make long standing or walking tiring.

Do they stay on the foot without a back strap?

The broad front strap holds the foot, but a mule can slip at the heel. Size carefully and expect a looser feel than a pump.

Yes, for paved surfaces and dry weather. The open toe and leather sole are not made for rain or rough ground.

The stiletto is sharper and dressier but less stable. Block-heel versions are easier to walk in for longer.

Brown leather works with neutral tailoring, denim and evening dresses. The open toe suits warm weather and indoor events.

7 stores we checked sell it, including Level Shoes US, farfetch.com, Lyst, Neiman Marcus, Paris Texas.

Paris Texas

At Level Shoes US, for $591.50, 30% under what the other stores charge, as of our latest check.

$591.50at Level Shoes USChecked 1 h ago

30% under what the other stores charge

Compared across 7 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.