The ultimate high-performance half zip...

We have chosen this piece for its incredible lightweight breathability and long venting zip. It is a piece that works really with our Brynje mesh base layers!

Mammut’s lightest and most technical first layer is a true multi-sport MVP. Airy and breathable with offset merrow stitching, its barely-there feel is enhanced by body-mapped mesh and natural sweat-wicking properties for optimal temperature regulation. Quick-drying and odor inhibiting to keep up with your sweatiest challenges, its reflective detailing keeps you visible when the sun gives in before you do. The half-zip variation of our staple high-performance longsleeve is an easy choice for every outdoor enthusiast.

The features of this product are:

- 100% recycled polyester

- Mesh ventilation zones on back and under arms

- Offset, smooth merrow-stitch seams

- Long half-length zipper makes it easier to put on and allows rapid ventilation in warm temperatures

- Treated with HeiQ Fresh FFL - a bio-based technology that reduces unpleasant odors

- Quick-drying

- Reflective elements