Pinebury sent us these made in the USA, natural fiber performance long sleeve tees. Best worn on a bike or run. Made from Nuyarn merino wool with a choice warmth to weight ratio, each offers elite support from late winter through early summer. These are elite athletic tees, but by no means do you need to work up a sweat to feel the supreme benefits of merino wool. A bit about Nuyarn... Nuyarn is the world's first performance wool. While merino has some great qualities, it is also susceptible to poor abrasion performance, holes, pilling, moisture retention and insulation that is substandard. Nuyarn maintains much of the volume and aeration that nature provides, without many of the traditional pitfalls of merino.
