How trendy would you like it! The classic Marc O'Polo stripes come to life spectacularly on this deep blue duvet cover set made from cotton flannel. Horizontal and vertical, thick and thin: the stripes come together to form an original check pattern. The Vallen duvet cover is made from yarn dyed cotton flannel: only after dyeing was the yarn woven, which makes for a more intense check pattern! The flannel fabric keeps you lovely and warm during cold nights. The reverse is a variegated grey blue colour.