This is a great lightweight jacket. It wears a lot like a hoodie - light weight, flexible, and thin. It's very comfortable and allow nice freedom of movement. The outer material is a soft nylon shell and the inside is a thin fleece-feeling material.
I'm 6 feet tall and about 230lbs. The XL size fits me perfectly. Usually an XL jacket is super long, but this one falls nicely at my waist. The arms are a good length, maybe a tiny bit too long. But with the adjustable cuffs you can keep it off your hands easily. The arms do fit fairly close. You're not going to be able to layer this with a thick fleece or sweater. You should be fine with a thin fleece or a long sleeve t-shirt.
The main advantage of this jacket over a hoodie (besides looking way nicer!) is the wind blocking. It doesn't block 100% of the wind like a hardcore windbreaker or ski jacket shell, but it blocks 90% of it which is enough to keep you warm.
Overall I'm very pleased.
