Cote & Ciel Cote & Ciel Backpack Backpack Black L size Like new, used 10 times. Cote & Ciel is a French brand established in Paris in 2008. The brand name Cote & Ciel means "coast and sky" in French. They research and develop environmentally friendly materials, such as using recycled yarn and PET bottle materials in their products. In addition to designs that fit smartphones, tablets, and laptops, they have gained tremendous support from creators and business people for their carefully selected materials and stylish designs.