I tried on a Prois puffy at the SHOT show last year, and was not impressed with the cut, fit or loft, especially for the price. Their other clothing options seem designed more to look good in a tree stand than to be truly functional for a serious female Hunter, especially at that price point. Tight fitting pants without stretch for ease of movement, form fitting layers in camo print synthetics fabrics, etc...Many better options available, at least IMO.
Any women's good quality clothing from an outdoor or mountaineering company should serve her well, it just may not be camo. I usually just run earth tone solids and don't worry about it. Companies like arcteryx, OR, Westcomb mojntaineering and Rab make quality gear that function for difficult activities in tough terrain. I would look on Sierra Trading Post, or your local outdoors store. If camo is a huge priority, some men's gear might be an option. Kryptek does offer size small, and I believe Sitka might as well...I can sometimes wear men's small sized gear (I am 5'3, 135lbs) but the cut is often not quite right so it depends on the particular item and intended use.
The first lite women's line is also excellent, I am working on a review that should be up here on Rokslide by December... I Have been running the Artemis and lupine merino tops all season, and picked up a second hoody because they are that amazing. Only have a few days in the baselayer bottoms so far, but they are well made and have features carefully designed for high performance....wide waistbands that done bind, and good cut for a woman's curvier body. First lite just started offering a women's line last winter, and I think the plan is to expand from the baselayers to other clothes like pants and outerwear. I have talked to the first lite guys at length, ands it's really important to them that they do their women's line right and design it to women's specific shape and needs as opposed to just making a smaller version of their men's line and call it good. This takes time for research, design and testing, so be patient with them...if the baselayers are any indication the rest of the gear in the first lite ladies line will be well worth waiting for.