Looking for the best merino wool T-shirts out there? Check out our favorite merino layers for hiking, biking, running, and more.

Below, some of our favorites. Vintage French workwear inspired this double-pocketed wool number. 18 East Wes Straight Hem Work Shirt, $218 Cut like a bowling shirt, this cotton-linen one is dyed ...

Outerknown's iconic Blanket Shirt does both. These ruggedly handsome flannel layers are known for their great warmth without ...