This jacket is lightweight and so comfy! From the manufacturer: A waterproof jacket with bonded seams and a collapsible hood for guaranteed protection. No wind. No water. No worries. Athletic, relaxed fit. Approximately 24.5” armpit to armpit and approximately 18” from armpit to hem along side seam. We are a dog friendly home, but carefully store all items for sale to minimize any impact. While precautions are taken, it is possible you could find a stray dog hair in your package. Please keep this in mind when purchasing from me, if you or your family have pet allergies. Please feel free to ask questions. Bundle for discounts.