A jacket with innovative down chambers, developed in cooperation with athletes. In order to avoid thread exposure and likely damage through abrasion, the development team divided the chambers through cut seams, where the thread is located inside and protected from damage through layers of fabric.
Jury-Statement about Heavy Duty Down Jacket by Blackyak:
"Great longer back, wind covers on your hips. The lining and connected chambers make this jacket really innovative." (Marek Swiech, Polar Sport Warsaw, Client Service)