Warm without being thick and heavy because of plush interior, so... really comfy. Relaxed fit but it fits. I'm 5'11'' 165 lbs, fit and muscular and the medium fits perfectly. Hard to find a fit like this today because everything is so slim. It's really roomy, but actually fits like it's supposed to, as opposed to just being too big, for like a larger human or someone with a larger gut. Hard to describe, but I feel like no one has made a sweatshirt like this in 30 years and I don't know if I know any company that has made a sweatshirt that fits like this in 100% cotton. Those sweatshirts in the 90's were all 50/50 blends. Can't necessarily fit it under a more fitted jacket but it's not really for that to me. Really nice to just throw on and feel relaxed. Like it's the kind of fit that makes you feel nonchalant and relaxed. But it's not in the way bunching with sleeves that are too long and all that. Great style when you want a break from the slim fitting sweatshirts. I will say the cuff seams were a little rough at first, but I took a light sandpaper and just softened them up a bit and now I don't notice it. Dont' know what that's about, but couldn't pass up the fit and the seams don't bother me now.