That’s according to this article which suggests the rising cost of cotton may mean the end to cheap fashion. High street chains such as Debenhams, Next and Primark have all been affected by the rising cost of raw materials such as cotton and as such are likely to increase their prices by around 8%. This would mean an increase of about £2.40 on a pair of jeans or about £4.00 on the cost of a £50 dress.