my mate turned up to do some fishing in a £200 down RAB, pool was freezing over before our very eyes, he had hat, gloves thermals all the usual, i had thermals, sweater, WW2 sas smock and snugpak sleeka elite. i was snug a bug, he was all for sitting in the car. they are excellent, too warm sometimes, and the more activity you do in it the more heat it seams to hold. they are cheaper, and just as well made, when its knackered chuck it away and buy a new one, with the RAB or similar you'll get charged the earth and then cry your eyes out when you finally realise you could have spent half as much and got matching salopettes as well! and been warmer! IMHO