This shirt lives up to its name..ssssoo soft. I'm 5'4, 130lbs with 34D chest, broad shoulders, long arms, short waisted and athletic/lean body. I got a medium and it's perfect..enough room to be comfortable w/o being too box; perfect for bopping around. If I got a small would be more fitted and would use it for running.

I found this shirt on sale and bought it because the fabric felt so soft and luxurious. If you buy it you'll see why they call it "butter" fabric. Now I want to buy more.

I've been wearing it constantly and its very warm and the fit is very flattering. I am around 5' 4" with a long torso and weigh an athletic 134 lbs. I bought a small and it fits perfectly and comes down far enough to cover my torso completely, unless I am wearing extremely low rise jeans.

I wear it running outdoors and while doing yoga, but its cute enough to wear out, too. The hood stays up when I'm running outdoors in the Minnesota wind/cold unlike other running hoodies I've bought. It makes a great base layer (dry and warm) for outdoor winter sports.

Right now I'm traveling and though its been a few days of repeated wear it doesn't smell bad like other synthetic shirts I own would. Highly recommended!

I wear this all the time, for any outdoor activity, for running, for errands, for lounging around the house. It is a very thin layer, but is very soft and stretchy.

I'm 5ft 90lbs, and the XS fits me perfect! It has a flattering shape, and is very comfortable. I wear it everywhere, even to work on casual Fridays!

I'm 5ft 90lbs, and the XS fits me perfect! It has a flattering shape, and is very comfortable. I wear it everywhere, even to work on casual Fridays!

Love the material, love the fit, love how it washes, love the versatility! LOVE IT!

I love this shirt - it is extremely comfortable and fits great. The material does feel like butter, too. It's the perfect weight - warm enough to wear on a cool day, but light enough to be a great layer when exercising outdoors.

Mountain Hardwear Butter Topper is one of my favorite tops. The material is incredibly soft and comfortable, and doesn't start to stink as easily as some other synthetics that I have. I use it for climbing, hiking, backpacking and even at work - the fit is flattering and hugs your curves without being skin tight.

God gave me curves and this didn't show 'em off. Seriously, I can look hot, but this wrinkled in front, down the v-neck, and would have been fine if I was a nearly A. Would have been a keeper just for the cozy factor if I didn't have any mirrors. Earns 3 stars for the material alone.