Is the UGG Shasta Mid Boot actually waterproof?

Yes. It uses a Gore-Tex membrane with a leather upper, so it is built to keep water out in rain and slush. The wool lining stays warm even when the outside is wet.

How does it fit compared with other UGG boots?

It is a laced leather boot rather than a slip-on, and owners often find it runs roomy. Try your usual size first and size down if you want a snugger fit.

Can I wear it in summer?

It is a cold-weather boot. The wool lining and waterproof membrane trap heat, so it feels warm indoors and in mild weather.

How does it compare with a hiking boot?

It shares the waterproofing and rubber outsole of a light hiker but adds UGG's wool comfort. It is less breathable and less technical than a dedicated hiking boot.

What is the upper and sole made of?

The upper is leather with a Gore-Tex membrane, the lining and insole are wool, the midsole is EVA and the outsole is rubber.

It handles packed snow and slush well thanks to the rubber outsole and waterproof build. For deep snow or long winter hikes, a taller insulated boot is a better match.