These are the new Rosenborg Ballklub (BK) Home and Away shirts from adidas.
The largely white primary shirt for the Norwegian Eliteserien side is embellished with black and limited use of sand trim, while the change, rather than a black design, has a green trunk with black raglan sleeves and white, nodding to a famous pitchside-jacket look sported by the likes of Bjørn Hansen and Nils Arne Eggen.
The use of sand on the Home is marketed as a metaphor for how many people working together can create something important - like grains of sand forming structure - and the two shirts will be combined with the same black shorts, as first choice, with white and black sets of socks available to complete the kits.
