Is the Hilltop II warm enough for winter?

No. It is an uninsulated waterproof shell, so you need a fleece or jumper underneath in cold weather. It works best as a rain layer in mild conditions.

Is it fully waterproof?

Yes, it is sold as a waterproof rain jacket with a hood and adjustable cuffs to keep rain out. It is not designed for prolonged heavy exposure like a mountaineering shell.

What sizes does it come in?

It is a women's fit jacket, and Mountain Warehouse lists it across a range of standard women's sizes. Check the size chart before ordering, as the fit is described as a perfect fit.

Does it have pockets?

Yes, two side pockets. There is no chest or inner pocket.

When is the best time to buy it?

The recent low was $35.99 on November 2, against $44.99 on November 1. Watch for drops around seasonal sales, when Mountain Warehouse discounts outerwear.