Smart Water Bottle Cap Holder

Easily attach to your smart water bottle and cap using flexible TPU 95A.  No glue is required, just stretch the small side over the bottle rim, and press the large side tightly onto the cap.  I use this for smart water bottles when I go backpacking. 

I printed this with zero top/bottom layers, 0% infill, and 10 walls, which prints as a solid.