I have only worn this 3 times with no signs of pilling, yet. it is good for cool spring days/evenings. for me, it'll be the cooler 3-seasons sweater. i wear a size large and it fits properly. i have worn lightweight long sleeve knit tees under this with ease in the sleeves. i think a slim sleeved shirt/blouse would work equally well. while i like the idea of the pockets, i think they'll stretch out easily beyond a tissue or quick hand warming. i removed 1 star due to the high price and i receive