This Tranquillo sleeveless shirt is a must-have for warm summer days. In a gorgeous light cotton, with a subtle shimmer, it's also extremely comfy!  The ruffled borders at the armhole seams, as well as the small cut-out with button at the round neckline, add interest. Due to the light fabric texture, this shirt is perfect for hot summer days. See the size guide here. Fabric: GOTS certified organic cotton.