I am loving this jacket and the reversible feature. Great quality and the colors are so vibrant. They definitely grab your attention. The sleeves are a nice length and it’s not tight. I think it may run a little big but not by much. I’m wondering if a medium would fit me better. I got a large (my arms are a little long), weigh 175 pounds and am 5ft 6.5in tall. I have a fair amount of room in the large. I got a large to air on the side of caution since my arms are a little long but think I would’ve been fine with a medium. I would recommend this jacket, stick to your size, and I will be ordering again.