BASED on my experience, this t-shirt is incredibly comfortable and perfect for any activity .The merino wool material keeps me dry and warm in colder weather but also regulates my body temperature in warmer weather. The shirt is also durable and has held up well during multiple washes. The only downside is the higher price point compared to other base layer options. Overall, I highly recommend this shirt for anyone who is looking for a functional and comfortable base layer for their outdoor activities..