Good used condition, just a bit of pilling at armpit. Size 3XS in Universal Standard is roughly a small. I also have a listing for the same shirt in Earl Grey (lavender) so feel free to bundle both :) Pit to pit: 34" From Universal Standard: "This is quite simply the perfect tee. Carefully crafted for an impeccable fit, the Tee Rex is made from premium Peruvian cotton that only gets softer with every wash. A stovepipe sleeve that eliminates excess fabric, a strategically curved hem, and length that's not too long and not too short, make this tee truly one of a kind."