Surprisingly tight with long sleeves - Patagonia Downtown Loft Jacket - Women's

This is a surprising jacket from Patagonia, given that the zipper is low quality and there is no cuff or anything to block wind in the sleeves. I expect more from a relatively expensive winter coat. Their sizing also strikes me as off. I am 5 foot 3 and usually wear a small but ordered medium so I could fit bulky sweaters underneath. No chance. The sleeves were absurdly long and the waist area super tight when zipped. I guess they are designing for very thin Amazonian women.