It's not a brand, just the names of some light or light series down jackets (ultra-light down).

Valandre French brand, Valandre is probably the most professional down jacket manufacturer in the world. They only make down jackets for mountaineering, and their slogan is-welcome to the top of the world! All their down jackets have been strictly tested by mountaineers, and they are marked with temperature marks like down sleeping bags.