Columbia Sportswear Base Layer Mock Neck Omni-Heat® Top - Midweight, Long Sleeve (For Women)

I love Columbia's Omni-Heat products. I have no doubt that this top will perform just as well as my other omni heat layers in cold weather. This year I needed a new base layer top for an upcoming ski trip. Much of Columbia's products for women have been getting overly tailored to the point that it renders them useless for athletic activities. I actually pulled out a Columbia ski coat of mine from ten years ago and compared the fit to a large Columbia ski jacket I bought 3 years ago. The small from ten years ago was roomier than the three year old large! So with that in mind and after reading the reviews of others, I sized up from a large to an extra large. I am 5'4 and 156 lbs. I have swimmer's shoulders so the chest area and arms are areas where there's going to be an issue if there is one. The extra large fits just right for me. The chest area is closely fitted without being tight or constricting. The torso fits a little looser and will be comfortable during high energy activities. The neck opening is tight while pulling it over your head but not too tight once its around the neck. I'm really pleased with this purchase :)

I purchased a few different base layers to take to Iceland in December so I could layer up. I'm 5'1/ 125 lbs/ 34C/27" waist and a med fit just fine, not overly tight but had a little wiggle room. This gives/stretches a bit which makes for easy movement and easy to slip the mock turtle over my head. The sleeves are too long for me but I'm a petite so didn't expect them to fit. No cuffs on the sleeves to keep the sleeves from coming over my hands and the body length is long, but I'm a petite. Did not shrink when washed in washer on cold and dried in a dryer on med heat. My only complaint is that it it's not warm!!! Wearing it by itself, my upper arms were freezing w/ any very slight breeze like walking, even more so if I wasn’t wearing anything on my arms at all which I found to be very odd, must be those dots! I put another light layer over it and still the same. The chilly arm syndrome disappeared only after I put a thick fleece over this layer. That was my intention all along to layer under fleece but kind disappointed that it feels so chilly by itself, won't make a good single layer in warmer temps and was hoping this piece could multi task. Might have been happier if I paid less.

Excelente material, buenos terminados, pero no me funciono para el frio tanto como esperaba.

Overall the product is very well made a served the purpose. I felt it was a little tighter than I had expected around the neck and arms. I probably should have gone up one size

Though billboards for this omni heat fabric are all over town, it didn't register with me what this was. It's a thin, lightweight fabric that has a silvery inside that looks ironed on. It fit comfortably snugly and I wanted to believe it would be a thermoregulated wonderworker. It also had a strong smell that seemed to me like it came from the process that got the silver attached to the fabric. I wanted to like it for the stretchy fit, but couldn't get past the smell and the feeling like I may be getting duped by a gimmicky fabric--was it all going to just flake off with a few washings? I'll never know. Others may have had smashing success with omniheat products, but it didn't seem worth the price so back it went.