Is the Classic Crush Boot actually waterproof?

It is listed as waterproof, and the molded EVA foam upper and outsole have no seams or laces for water to get through. Water can still enter over the top of the 6.75-inch shaft in deep puddles.

How does it fit compared with a Classic Clog?

It uses the same foam slip-on construction but a taller shaft and a 2-inch platform. The shaft is fixed, so there is no strap or laces to adjust; try your usual Crocs size first.

Can I wear it in snow or on ice?

It is waterproof and covers the ankle, but the EVA outsole has a fairly smooth tread. It is better for rain and slush than for icy ground, where a lugged rubber boot grips more.

It is listed at about 18 oz per boot. That is light for a tall boot but heavier than a standard low clog, mostly because of the platform.

What is the heel and shaft height?

The platform heel is 2 inches and the shaft measures 6.75 inches from the foot. That puts the top around the lower calf on most adults.

Does it come in unisex sizing?

Yes, it is listed as unisex and sized in US men's and women's equivalents. Check the size conversion before ordering if you normally buy women's sizes.