Kimberly-Clark has cut the number of tissues in each box of Kleenex Balsam by 10 percent and dropped 21 sheets from every roll of Andrex toilet paper, according to a report published by the Daily Mail.

The US FMCG manufacturer has attributed the shrinkage to rising raw material costs, with fiber prices soaring 15 percent in the past year. “This is the first time we have reduced the number of sheets in our Kleenex range since 2011, despite investment in our brands,” the company told the Daily Mail.

According to the Office of National Statistics, Kleenex and Andrex are part of a wider movement, with some 2,500 products reduced in size of late.

The shrinkage has been attributed to currency fluctuation in the wake of Brexit, with several manufacturers choosing to recoup losses by changing their pack size, a move that carries no legal obligation to advertise any changes, rather than up their prices.