Since the astronomic rise of skinny jeans (blame those spindly-legged indie kings and queens of the mid-noughties for making them an undisputed wardrobe staple) wearers have been driven to woe over their limitations. Dropping your iPhone becomes an awkward squat manoeuvre, or face the angry protestations of your poor, denim squeezed knees. Any attempt to dance leaves you looking more like you have rigor mortis than a rhythmic disposition. Thankfully, the clever folks at Replay have come up with an end to our plight. They’ve developed Hyperflex, a new range of jeans for both men and women that uses fancy technology to give them optimum flexibility – these jeans are designed to be stretched to the limits. In a new campaign, Replay have appointed Brazilian supermodel Alessandra Ambrosio to put some pairs to the test. Spoiler alert: they're even limber enough to resist two ladies wrangling over a coveted pair...