zenbivy states their ratings as limits for *25/*10 and *35/20 degrees for comfort.
Comparing the fill weight of zenbivy vs Katabatic for 900 FP and Large ZB, long/wide Katabatic
ZB *25(*35 comfort) - 326g fill, Kat *30 - 375g fill, Kat 40* - 300g fill
ZB *10(*20comfort) - 598g fill, Kat *5 -660g fill, Kat 15* - 550g fill
Katabatic are known to use a more comfort/realistic rating than some manufacturers and you can see the similarity in down fill. Obviously just a spec # does not tell the whole story, but if your going to look at specs or metrics fill content is probably the most important.
Comparing the fill weight of zenbivy vs Katabatic for 900 FP and Large ZB, long/wide Katabatic
ZB *25(*35 comfort) - 326g fill, Kat *30 - 375g fill, Kat 40* - 300g fill
ZB *10(*20comfort) - 598g fill, Kat *5 -660g fill, Kat 15* - 550g fill
Katabatic are known to use a more comfort/realistic rating than some manufacturers and you can see the similarity in down fill. Obviously just a spec # does not tell the whole story, but if your going to look at specs or metrics fill content is probably the most important.
