Check out this review of our Sequoia Midweight Merino Wool 1/4 Zip by TheOutdoorAdventure.net. Here's what they had to say: "This top is the counterpart to Minus33’s men’s Isolation 1/4 zip that we reviewed earlier this year and boasts all of the same benefits. From the super soft 18.5 micron merino wool, to the flat lock stitched seams, this midweight layer is everything you could want as part of your layering system. The 230 gram interlock knit construction is comfortable against the skin and durable between layers. It’s in the mid range for merino warmth and is best for the shoulder seasons (autumn and spring) and ideal for winter as part of a layering system. We always recommend going with a 1/4 zip for mid layers as they are that much more versatile for temperature control."