Good base layer - Arc'teryx Gamma LT Pant - Women's

Got these for my wife. She is perpetually cold and layers pretty much everyday know matter if its for work or play. So these are fantastic quality! They are lightweight but seem to offer good insulation she said. Also I think she likes the comfort because she is wearing them around the house a lot like stretchy pant pajamas. So I win, keep my girl cold and contoured stretchy pants around the house! Boom! She is XS and these fit true to size.