Drawing on our decades of climbing, running, training and general experience in the mountains, we continue to develop and expand this collection of core products directly made by or designed and sourced by Rock + Run.
Cumulus sleeping bags are designed and built in Poland, and are manufactured to offer some of the lightest down sleeping bag ranges in the world.
Not only are Cumulus sleeping bags light, they are built to be durable and of the highest quality. Only the best raw materials are used in production and the construction techniques and design innovation have provided some of the best sleeping bags on the market.
Cumulus offer as many as five methods of chamber construction, each developed to offer its own unique benefits. All bags use sustainably sourced Polish goose or duck down, high-grade face and liner fabrics from Pertex, YKK zippers and, unlike most other sleeping bag brands, are entirely constructed in the EU.
Take a look at the video below showcasing the fabrics used in Cumulus products, read a Rock + Run blog article on the Construction of Cumulus Sleeping Bags and check out our collection of Cumulus sleeping bags below...