The Birkholm is a dark navy light zip-through down vest, constructed with Pertex® Quantum. Pertex® Quantum uses a tightly woven structure to provide a light and soft windproof fabric that allows insulation to fully loft.
This construction is designed to trap still air and improve the efficiency of insulation. This textile is 50% recycled and finished with a PFC free DWR finish that sheds light, rain and snow to provide additional protection.
Size guide
| SIZE CHART (CM / INCH) | CHEST WIDTH | SLEEVE LENGTH | LENGTH FROM NECKLINE |
| XS | 53 / 20.9 | NAN / NAN | 63 / 24.8 |
| S | 55.5 / 21.9 | NAN / NAN | 65 / 25.6 |
| M | 58 / 22.8 | NAN / NAN | 67 / 26.4 |
| L | 60.5 / 23.8 | NAN / NAN | 69 / 27.2 |
| XL | 63.5 / 25 | NAN / NAN | 71 / 28 |
| XXL | 66.5 / 26.2 | NAN / NAN | 73 / 28.7 |