I measure a medium but ordered an XL. This was based on my ChatGPT’s recommendation based on my specific style goals (I gave it my height/weight/measurements and a screenshot of the size chart). I’m happy to say the size chart is spot on. My sweater is just oversized and relaxed enough to be perfect. I’m very, very happy with the sleeves. I know even if I bought a medium they still would have been long enough and as someone 5’10” that’s important. Most tops are roughly 2.5” too short in the sleeve on me. I’ve received several compliments on this cardigan already. Hopefully it holds up well, it looks like good quality. Thick but still comfortable in the summer months. No pilling or loose threads. I hope they expand on this collection so we can get this cardigan in more colors. I need this in pink!