When I first got these, I was a bit disappointed about the weight of the fabric, it's very lightweight, almost like a T-shirt material. When that order arrived, I really didn't think I'd get much use out of them. I was wrong. It was still winter, and I put them in a closet and almost forgot about them. Then on a cooler summer day, I was cold, but it wasn't warm enough for my normal fleece sweatshirts. Then I remembered these buried in my closet and pulled one out. It was perfect! I was warm, but not overheated. I started to wear them when we went out to eat. I'm always cold in diners and restaurants, but my fleece sweatshirts are usually too much; I'm too warm with them on and too cool with them off, so I wind up draping them over my shoulders, and I'm constantly having to reposition them because they slip down. These lightweight sweatshirts are just perfect in a cold restaurant. I had originally purchased only 2 of these, but after using them all summer long, I bought 4 more. Now with the cooler weather moving in, I'm wearing these around the house, and when I go outside, I put one of my fleece sweatshirts on over them. I have a lot of fleece sweatshirts and wear only a couple of them because my skin is very sensitive and I can't wear any scratchy material against my skin. After numerous washings, the once soft lining of my heavy fleece sweatshirts gets stiff and scratchy, and for me, very uncomfortable. So basically out of about 4 dozen fleece sweatshirts, I only wear a few of the newest ones that are still kind of soft. I've found that I can wear one of these lightweight sweatshirts under my heavy fleece ones, and I'm comfortable because these sweatshirts are just so soft. With using these as liners, I can now go back to using my entire collection of sweatshirts comfortably. As for fit, I always buy any kind of outerwear in a larger size than I actually wear. I do this so I can layer different articles of clothing, depending on how cold I am. I wear an XL, but buy sweatshirts and jackets in either 2X or 3X. The lightweight sweatshirts I purchased are 3X, but I feel they fit more like a 2X, so I would recommend sizing up a bit. All in all I really love these hoodies! If you are like me and are cold most of the time, these will give you the little bit of warmth that you need for those in-between conditions where you're cold, but a fleece sweatshirt is too warm. These are just right.