Very lightweight but at the same time giving you the little extra warmth when you need it. I have the mulberry colour and it's beautiful. I put in the washer, zipped, inside out and hang dry. It dries super fast. No piling.
I have several of the 1/4 zip Fitness Fleece shirts so I decided to order the same thing in the full zip jacket. The weight is great for 3 seasons but the length of the sleeves and the overall length just ridiculous. I am 5'4" and 135 lb. and a medium is just way too long. I wish it was available in a Petite size so perhaps it would be shorter. Unfortunately, I will be returning it.
I took this with me on a recent car trip and it countered the air conditioning in the car perfectly. I ordered the jade color and it is a jewel tone, really nice. It is lightweight, not meant for a cold day, but definitely works for a mid-50s day.