Ronhill Tech Matrix 1/2 Zip Long Sleeve Running Top

• Regular fit
• Lightweight, sweat-wicking fabric draws moisture away from the skin
• Ergonomic thumb loops provide stay-put coverage
• Reflective details enhance visibility in low-light conditions

This thermal mid-layer from Ronhill is incredibly warm despite its low bulk and is ideal for cold days worn as a layering piece.

The Matrix fabric is designed to do several things: the grid pattern helps to trap air and insulates the body; creating low bulk that can layer effectively over a base layer and under a jacket. It can also be worn next to skin if preferred.

The fabric also moves moisture really effectively due to different sized yarn filaments on the outside and inside. In layman's terms, this means that the sweat on the inside is drawn to the outside quickly which keeps you super dry.