The quality is excellent. The fabric is very soft and feels incredibly pleasant against the skin. The fit is great. I usually wear a size S, but I ordered an XS because the set has an oversized fit, and it turned out to be the perfect choice. Both the sweater and the pants are quite heavy, so I would not recommend sizing up. Because of the weight of the knit fabric, a larger size may stretch and sit lower than intended. The waistband is very stretchy, so even people who normally wear a size M could comfortably fit into an XS. Both the pants and the sweater have a relaxed, roomy fit. The ribbed cuffs on the sleeves and the elastic cuffs at the bottom of the pants are very well made. They hold their shape nicely, so the sleeves do not slide down and the pant legs stay in place. This is a very warm set, and the color is absolutely gorgeous—a beautiful shade of gray.