Cam-Profile lid makes opening frozen bottles easy- even with mittens or gloves. Tape Dogbone allows for wrapping up to 2 meters of duct tape around the bottle while maintaining a snag-free outer profile. Secure silicone grip covers and protects tape from damage while providing a firm grip. Standard wide-mouth opening fits standard water filters. Includes sip-it lid. Infinity polypropylene is a lightweight, recyclable, BPA-free, dishwasher safe, non-odor absorbing, and durable plastic.