I have three of these now and I love them. Not because of the koozie but because they are slightly taller than a regular bottle cage and have a very secure hold on a regular cycling water bottle. I use one of them on a fork mount they have never dropped a bottle. According to my kitchen scale the cage without the koozie is 49 grams. With the koozie its 89. I think blackburn would probably sell more of these if they corrected their weight claims.