Good looking jacket but disappointment sizing and fit - Arc'teryx Solano Hoody - Men's

Overall, Solano Hoody is a decent jacket especially the material (GORE TEX) and it feels like a good quality jacket. I like the lining inside (fleece-like) as well. However, the sizing and fit are horrendous. I thought Arc'teryx is more for athletic/slim fit but the jacket is so baggy. The torso is a bit loose but it is OK. You can fix this by sizing down but the arm fitting is just unfixable. Not sure why the arm sleeves are so big and baggy. You can fit both arms in one sleeve. It baffles me with the excessively extra material in the arm area because it looks ridiculous on you. Designed for massive biceps? Very disappointing on that part. For a jacket that is expensive like Solano, you would expect it fitting better on you.