I got two of these bottles when I started cycling, a week later my father in law got two as well after we ran out of water during one of our rides and I gave him some of mine. He was amazed how cold the water was. My daughter is a dancer, and begged me to get her a bottle like daddy's, so I did, and she loves it. My Wife is a teacher and will not drink water from the fountains at school, so I got her two bottles and she takes them to work everyday!!! its nice to have different colors available, so my wife daughter and I know exactly which bottle belongs to each of us!! Easy to wash, and keep clean!!
For some reason one of my bottles started making a noise after I drink from it, but its just the air trying to scape, all I do is squeeze the bottle after I drink from it, and the noise goes away!!