They advertise in pounds, but charge you in dollars, my bank took a % to exchange the money over... not so cheap. The trainers were authentic, i think. Mine were damaged after wearing them once. They won't refund me, as they are not based in the uk and the sale of goods act does not apply... Been on to a consumer rights phone line, and ive been told if they are not a uk company i have no rights, So i have a pair of nike trainers, which are faulty and can't send them back... Be careful