i bought two sets of sitka last year to try out. the celsius bibs and jacket and the 90% pants and jacket. i do like there gear light warm and flexible. they have held up well so far but i only have one season on them so time will tell. a little steep in price but that fades away after you actually use it. i got away with using the celcius in zero degree weather with the base layer. the 90% is a little weak better for early fall and spring conditions "40+ degrees" below that the name will apply because 90% off the time you will be freezing your ass off.