Is the Clyffe Mid Insulated WP actually waterproof?

Yes. The textile upper carries a waterproof membrane and the seams are sealed, so slush and rain bead off. It is not Gore-Tex, so it breathes less than The North Face's Gore-Tex boots.

How warm is it for winter?

The synthetic insulated lining is aimed at cold city days and light snow. It is warm enough for commuting and errands, but not for long static hours outdoors in deep cold.

How does it compare with The North Face's Gore-Tex boots?

It is lighter and simpler, with an in-house waterproof layer instead of Gore-Tex. Gore-Tex models breathe better and often use tougher uppers, but the Clyffe is easier to wear every day.

Can I wear it for hiking?

For packed trails and light snow, yes. The EVA midsole and rubber outsole are not stiff enough for rocky or steep alpine routes.

What sizes and colors does it come in?

It is a men's boot offered in US sizes from small to large, including 3.5, 5 and 13, in black and brown. Check the size chart, since the fit runs like a standard boot.