The model is wearing a size S/M. Model's measurements: height 173 cm, bust 89 cm, waist 65 cm, hips 91 cm.   Dimensions of the t-shirt in size S/M measured flat: width under the armpits - 45 cm, sleeve length - 17 cm (from the seam), width at the hips - 48 cm, total length - 62 cm.