While tracksuit pants might not be everyone's idea of haute couture, they're undoubtedly among the most comfortable items of clothing you can own, right up there with flannelette pyjamas. And whether you're chilling out around the house, or heading over down to the gym in the cool of the morning, trackpants have a place in the modern man's wardrobe.
In recent years high-end fashion houses have been climbing aboard the 'trackie dack' express and including a pair or two in their range, elevating the humble trackpant to something approaching fashion.
Author and men's stylist Jeff Lack says he loves tracksuit pants, but wouldn't wear the standard type outside the house.
"On the other hand there is a level of tailored trackpant that is well above the 'Netflix and chill' version, and I'd definitely wear those outside, teaming them with a pair of nice trainers for that 'sports luxe' look."
With prices like these, the only public place you're pretty much guaranteed you won't see them is at the gym.
Scroll through the gallery above to see the priciest pairs on the market.