The fashion retailer reports profit increased to £213m and group sales rose 5% to £1.6bn in the first half.
Next says that new space expansion and the “excellent” performance of its catalogue business Next Directory offset a -1.5% drop in like for like retail sales.
The chain warns that comparing like for like sales has “become a little confusing as a measure of performance”.
Next Directory registered a 9.5% increase in sales, 70% or which came via the internet.
The retailer says it has focused its marketing spend on “the most profitable methods” which boosted customer numbers.
Lord Wolfson, Next chief executive, warns that a sharp increase in the cost of cotton could mean clothing prices rising by between 5 and 8% next year.
However, Woflson does not expect a double dip recession or a “meltdown in consumer spending” despite the impact of Government sending cuts.
Last week, Next launched a French-themed television advert for its autumn/winter clothing range.