This is a very nicely made, comfortable samugi and a great value. Many samugi cost significantly more. In addition, I was very pleasantly surprised when mine arrived - from Japan, no less - in just a few days. The fabric is 100% cotton and is nice and soft. The cut is perfectly roomy but not so big as to get in the way. I use mine for morning zazen followed by gardening and yard chores. It's so comfy that I ordered a second set.As for sizing, I wavered between a medium and a large, and ultimately went with the large. I'm glad I did. I am 5'9", weigh 160 lbs, with a 40" chest and a 32" waist and a 31" inseam. I have an athletic frame. The large fit very well right out of the bag, with the legs being just a tad on the long side (but they have ankle tie-strings so not a problem). I ran it through the wash with hot water and then the dryer on high and it shrank the perfect amount and now fits even better. Shrinkage was fairly minimal, and that's all I needed, but be aware that you likely won't get a great fit if you order way too big and expect to shrink-to-fit later. Order the size you need, understanding that the sizing is Japanese sizing, which is about one size smaller than American sizing.