Review on humangear capCap for Parents by Jimmy Bores

1. Humangear CapCap Great humangear cap! However, you must purchase the correct spacers to make it work with Hydro Flask. DO NOT use the silicone gaskets that fit your Humangear's lid that other reviewers have mentioned. They don't work well at all. Use the ones that fit the Hydro Flask neck, see the picture. Just tighten the cap of your Humangear. You don't have to over tighten it, it provides a very good seal with good twist. These silicone pads are very easy to use! And don't worry about mold, wear and tear, etc., there are 10 in a pack, just throw them away and wear them again. 228 Silicone O-ring, dur. 70A, Red, 2-1/4 in. ID, 2 pcs. 1/2" OD x 1/8" wide (pack of 10) https://www.amazon.com /gp/aw/d/B000FMYTD2/ref=yo_ii_img?ie=UTF8&psc=12. Place the grip on your hydroflask, submerge the grip in water. Boil some water, remove the stove. Let the pen soak for at least a few minutes and place the pen on the hydro bottle. I was able to get mine with the inscription (see picture) out. It's a bit tricky to put on, but use some muscle and press in a circle, starting on one side and working your way around. Do not use tools as you may damage the handle. That's it guys!