This seems to be the new Scotland 10/12 away football shirt made by Adidas.
The shirt is basically a yellow version of the current home top. Yellow front and back, Adidas 3 strips down each arm, Adidas logo on right, SFA logo on right.
The away top wasn't supposed to be available until the 18th August. It's due to be worn against Sweden on the 11th August.
Thanks to Vigilante and nek