Quote Originally Posted by Jolt View Post
I have a 18 oz. widemouth HydroFlask and have the travel mug lid for it...I like being able to have the regular screw cap on it to transport it in a backpack etc. so I can be sure it won't spill, and then switch caps when it's time to drink the contents. Those Contigo mugs look cool but I'm just not sure I'd trust anything other than a plain screw cap in a backpack...
I've never had a problem but the new ones have a lock on them for extra security..