Autumn Winter 2023 collection is now live.

Arksen LABS

Cayus 2.5L Waterproof Packable Jacket


ARK 020

The Cayus jacket was designed for the love of adventure, to fully equip you with high performance and unbeatable function. Robust. Fully windproof. Packable. Completely waterproof 2.5 layer Pertex® Shield fabric. Cayus is agile, flexing with you and adapting to protect you from the elements. This jacket ensures protection no matter the weather. 

Our lightweight, breathable and recycled fabric is woven from a single polymer, making it easy to recycle at the end of the product’s life. Compact and space-saving, every fully-taped seam, from the soft-peak hood to the functional drawcord, exists to make adventure easy.


Pertex illustration

Pertex® shield fabric provides lightweight waterproof protection whilst remaining highly breathable.

Designed for intense mountain pursuits where weight and breathability are key, Pertex® Shield fabrics allow you to move fast and stay comfortable.The versatile 2, 2.5 and 3-layer constructions combine lightweight face fabrics with waterproof, windproof and breathable membranes. A durable water repellent (DWR) finish applied to the face fabric sheds rain and snow, which helps to maintain breathability.