Our Performance WRK Mid Weather features a heavier and warmer 100% performance polyester that is UPF50+, 4 way stretch, anti-microbial, and moisture wicking, with 1/4 zip front.
All Day Comfort and All Day Performance in our Men's WRK Basic, so that you can focus on your work, and not what you're wearing.
NOTE: Our Performance WRK Mid Weather runs about a full size too big. We recommend ordering a size down (EX: if you are typically a size X-Large, order a Large)