I bought both pants and sweater ... i couldn't believe how warm those were ... they are very soft ... color is brilliant and they hug your body perfectly without being too tight ... they stretch enough so that they are comfortable to move in
because they were so warm i ended up wearing them as a pajama even in cold days ...
I have never worn anything so warm in my life ...
YET some things to remember:
1- make sure to check Cuddl Duds website for sizing ... and don't go up a size ... buy the right size for you
2- These aren't very thin (as other base layers may be) they are made of thin fleece yet i easily wore them under my jeans
3- The sweater is cute that you can wear it by itself outside ... but i wouldn't do the same with the pants
4- I have broad shoulders yet the sweater's shoulders were somewhat kind of wide ... but that didn't bother me
5- The waist of the pants were somewhat loose ... the pants are high seem .. so it will sure cover your tummy
6- They are snug yet at the same time would let your body breath

Update: I washed them (cold water, delicate cycle) and didn't tumble dry (they were already kind of dry out of the washer so i just hung them to dry on their own) they came out well ...