Either I caught a Monday model or my quality standards are higher than those of the other review writers. I find this flask anything but well made, the thread play is just too big, I'm talking here of determined> 0.5mm game. If you are not careful when screwing the closure, the closure can be quickly tilt and damage the threads, the same is reflected while drinking cup, in the long term awakens no confidence in me. Sealing the bottle until now and the drinks actually stay long warm in the bottle, but the fit of the threads do not like me and the screw I imagined otherwise. Therefore, I can only give max.drei star of the bottle.