We need an expert in outdoor clothing/apparel design to help us design an an all-in-one sleeping bag and coat. The coat must be detachable from the sleeping bag bottom, and the jacket needs to have a removable waterproof layer.
We need to consider manufacturing costs and how to make the product highly functional and high-tech. The target market is UK summer festival goers.
Attached is the prototype we already have. Central London based project.