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No more Builder's Bum

Builder's bums could soon be a thing of the past, thanks to a new innovation in undies. The world's first "stay-put" pants are set to hit UK shops, promising a better fit no matter what position you get into.

6000 male bodies from both the America and the U.K were scanned and measured in order to understand what happens to male butt cheeks when they move to ensure that the pants would work on men of any shape, size or build.

The 3D Innovations pants 'stay put pants' are made in two halves. They are cut on the bias - to give two way stretch - then the fabric is cut across the grain to give four way stretch. The two halves are twisted and joined with a seam to give the unique eight way stretch.

They claim that the pants mimic the way the skin itself stretches giving them the 'stay put' factor and making them fit like a second skin.

The underwear goes on sale next week and they will be available at Debenhams stores and from www.figleaves.com.

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