From Seamwork:
The Finn shirt gives you a fun opportunity to play with your style and sew up a total wardrobe staple. Use the raglan sleeves to show off contrasting fabrics or a fun print from your stash.
Finn is semi-fitted throughout with two sleeve options. Version 1 has three-quarter length sleeves, and Version 2 has short sleeves. Sew Finn in knits with 4-way stretch and at least 50% stretch, like cotton or rayon jersey, merino, rib knits, and French terry.