Monster new mobile phones including the iPhone 6 Plus is forcing some fashion companies to redesign their pockets.
The rise of the "phablet" - enlarged mobile phones - has created a new problem for clothes designers.
At five and a half inches the iPhone 6 Plus is simply too large for some pockets.
Even if the phones just about fit, they will still be dangerously visible to pickpockets.
The problem is particularly acute for designers of women's clothing where, in most cases, there is less fabric to play with.
American Eagle, for example, is toying with producing a new women's line which - like their men's trousers - will have deeper pockets.
J. Crew is also examining the implications of the new bigger phones.
A spokesman told the Mashable website: "Throughout the design process, we try to consider every aspect of the way our customers live their lives, and changing mobile technology is no exception.
"We think about all of these details - whether it's introducing new tech accessories for the new iPhone 6 - or special interior pockets to carry the various generations of iPads or tablets."
Lee Jeans is also having a rethink, especially for its women's line.
"Of course, we're always going to make sure that we're going for something that's flattering for the consumer.
"But we're always thinking about how she wears the garment, what occasion she's wearing the jeans for and what she needs to just make them work for her everyday life."
The new initiative will help owners of the gargantuan phones to keep them hidden from the prying eyes of pickpockets.
A Scotland Yard spokesman said: "The advice we always give is keep your valuables out of sight."