This is a mid weight cotton and the fit of the L is perfect for me (5'8" tall, 148 lbs). It feels great to wear and I LOVE the embellishments and the attention to detail and quality craftsmanship. All the seams are are topstitched! The applique embroidery is expertly done, and it sets this garment apart as something unique and creative and special. The turquoise that I ordered is gorgeous, and I just ordered this shirt in another color. I couldn't be happier with this purchase!