Described as the ultimate 'must-have' for the coming winter, it will be available from November 20th.
"Remember your favourite weekend sweatshirt and jogging pants? Now imagine them as the funkiest items in your wardrobe and you've got the massive trend that is the OnePiece!" says Snow+Rock's Claire Collins.
"The OnePiece is the perfect leisurewear for relaxing - whether in the chalet after a hard day on the slopes, on a long haul flight, lounging around at home after work, on the sofa nursing a hangover, or just watching movies on a rainy Saturday afternoon!"
The OnePiece is already a hit with celebrities across the nation (including Davina McCall, Meg Mathews, Pixie Geldof, Nick Grimshaw, Sadie Frost, Jude Law and Westlife) and has been featured in The Times as ‘this season's hot item' and Snow+Rock is currently the only place you can try one before buying!
Ranging from £100 - £130 (depending on colour combinations and patterns) they're a unisex design and once you try one on you won't want to take it off - as demonstrated by Sadie Frost out walking her dogs recently!
"Get yourself one for the Christmas party season, or your next trip to the mountains, or for chilling at the weekend - and you can also get your other half a matching one as a Christmas gift! We expect them to fly off the shelves so make sure you get yours quick..." says Claire.
OnePiece will be launched into the following Snow+Rock stores - Kensington; Chelsea; Covent Garden; Harrods; Chertsey; Manchester Didsbury and Manchester Chill Factore