I/O Bio Merino Signature T-Shirt - Long Sleeve (For Women)

I ordered both the jelly and sky colors and they are much better than pictured.(The Sky is more periwinkle than baby blue). I was worried the sky may be too light but it is not and does not need a camisole. The neckline is perfect, not too high & not too low. The sizes do seem to run large (I am between a small and a medium but the small fit fine). We live in the Pacific Northwest and I plan to use this shirt all year round. I can use it in the summer when it cools down as the sun goes down and in the winter as base layer. This I/O BIO shirt is not quite as thick and not as stretchy as the Smartwool midweight crew (not a negative for me). I have an I/O BIO contact shirt that I LOVE and I am sure these will also become favorites. My sky shirt had a defect and had to be exchanged [...]

The fabric is sensitive to a hole or rip but love the feel next to my skin the best Merino ever.

I used to think that merino wool is only good in cold weather, but then realized that it is just as breathable and non-stinkable in hot weather. I bought this T with warmer weather in mind. Its my first I/O top in the "150" weight (almost a tissue T) and it is everything I expected-- super soft and breathable. I like the graphic a lot, but beware that the color is very purple - "grape jelly" is a perfect description. I'm usually a small in I/O and Icebreaker, but read that this top ran big and the XS is still a bit loose on me. That is why it is appropriately labeled a T shirt and not a performance base layer.

I love this shirt! I bought it because of the color. I read in other reviews that it runs large, so I ordered the medium, which fits nicely and snugly on my unfortunately zaftig "L" middle -but I've lost 5 pounds! I am wearing it right now. It's perfect as an under layer because it's thin. I also can wear it alone around the house or even to sleep in. I have worn it out, under a fleece vest or sweater, only because it's a bit clingy for my shape - until I lose that other 5 pounds! I wish I'd ordered two or three of these!

Just what I was looking for in a quality base layer.