This super comfortable hoodie will take from days out in the fall, to cozy nights by the fireplace. The open sides start about 4" below the armpit for free movement. The color is a soft lavender grey, it changes in the light. The pictures bring out the grey in it. My best guess is the fabric is a Cotton Spandex blend, because most of their sweats are, but the tag was sacrificed for comfort 😂. Bust width at the underarms is 28" and the length from the shoulder is 28"