In reply to Andy Cloquet:
I've had a Sabretooth for 2 or 3 years. Good hardwearing jacket. Nice stretch to it. Great hood. Only for colder conditions, that's for sure. I've often worn it only with a short sleeved merino T underneath on some cold winter days and been comfortable.
I've also got a Mammut Ultimate Hoody and the Sabretooth is superior to that.