Super comfy sweatshirt by Brandy Melville. This sweatshirt features a crew neck with embellished stitching that is a hit for those lazy days for chilling at home. Not overly warm or thick that you feel suffocated, but just right amount thickness to allow you to breath and move around in. I'm a solid size 12R and this fits just right. For the ONE Size, anything below 12 should be good depending how loose you like to wear your sweatshirt.