I bought one a couple of months ago from a car boot for a £10 note. The name above the front pocket is 'Snowbear', it's a one piece suit and toasty warm. When fishing with sly recently at Messingham, it was a very cold wind, but I had to take my fleece off, I was too warm.
IMAX suit 80 odd pounds on eBay ,very warm and keep you dry ,sat out in mine for 5-1/2hours on Thursday while fishing at makins ,kept me warm and dry ,spend the money you save down the pub should get a good night out with your savings ???.
Another vote for the iMac I've got the ARX 20 roughly the same price as the other IMAX but black and grey . Absolutely brilliant incredibly warm and waterproof yet to zip the jacket up in the year or so I've had it ,it's so warm.