Today we are reviewing the SmartWool PhD HyFi Half Zip top. When I heard about SmartWool’s new PhD products for this winter and looked at the HyFi and the SmartLoft jackets, I immediately thought they would be ideal to take climbing. I always climb in merino baselayers but none can cut it for winter. Although… Continue reading Review: SmartWool PhD HyFi Half Zip merino top
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