In reply to hannahntilly:
Aquafleece (Proline) was a double-sided membrane fleece, so any Windstopper or WindBloc fabric should be fairly equivalent. The disadvantage of AF was the fleece half on the outside; not protected from the wind (although it's a very dense fleece), and soaks up water... More recent membrane fleeces tend to have a knitted or woven outer, with all the fleece inside; a better idea, IMHO, as the face fabric is more robust and water resistant.
You're obviously considering moving to a membrane-free solution; you'll probably find it cooler but less clammy.
Rab VR Trail or other shelled micropile (e.g. Marmot DriClime, Buffalo Teklite, Montane Scarab) is a good choice.
Alternatively, a lightweight PowerShield (e.g. Millet Pro Touring).
Or, given how warm Aquafleece was, maybe a heavyweight PowerShield... My Patagonia Mixmaster weighs almost exactly the same as my ME AF Mountain jacket, but it has a hood too...
