This is an open collar shirt from WYM LIDNM. I've only worn it once because the size didn't fit. Width: 58 cm Shoulder width: 51.5 cm Length: 66 cm Sleeve length: 23.5 cm Hem: 110 cm Fit: Regular Length: Short Fabric thickness: Slightly thin Weight: Light Breathability: High Care: Hand wash/Dry clean It has a moderate see-through quality. I think this shirt is perfect for this summer. If you have any questions, please contact me in the comments.