Auto Flip Lid for Hydro Flask Wide Mouth, Great Spout Lid for Simple Modern, Fits for Iron Flask and Other Brands, Replacement Lid with Button Lock

These fit the Simple Modern Summit bottles perfectly without leaking. My kids love the push button, though my 4 year old sometimes struggles with the lock feature… he forgets which way has it locked then will be trying to push the button to open it to drink over and over. Not a problem with the item though! Now I just wish they came in more colors, like yellow, green, and beige!

This lid saved me from effectively trashing my simple modern bottle. I LOVE my bottle- I've had it for 3 years and it's literally with me everywhere I go. One small problem was that the straw lid it came with- the straw started to leech into and affect the flavor of my water 🤮 I actually purchased new straws through SM but they did the same thing. The materials have gone down hill with this brand unfortunately and the only alternatives to a straw type lid are a chug lid- which has a twist cap type of action. I actuallly have this lid type and I'm not a huge fan, mostly because it's extra work and typically a 2 handed process, but also because the under cap collects condensation, creating a mess when you want to drink (SM brand). I wanted something with single handed action, completely leak-proof and with a handle.in walks EIPOSAU auto flip lid- literally EVERYTHING I wanted for under $10! I actually purchased a whole new bottle of a different brand prior to finding this lid, and I'm SO happy I didn't use the new bottle before finding this because it really is the perfect solution. The lid is sleek, fits my SM wide mouth 22 oz bottle BETTER than the brand SM lids (FYI they leak) EIPOSAU does NOT leak whatsoever- and I've really tested this as I put propel packets in my bottle and shake them to mix pretty vigorously. No leakage whatsoever! I didn't have high hopes for an off brand but was pleasantly surprised. The one handed touch button has a locking mechanism which is convenient for tossing in a bag- but it's not necessary for leak protection either unless you bump up against something really hard. The rubber gasket that sits on the mouth peice is secure and keeps water from building up on the flip lid portion so that you're not geting dripped on when you go to take a sip like SM lids (IYKYK) The mouthpeice is angled, making sipping ergonomically sound- and it works from stright ahead or via "side sip" if you're driving or need your eyes/ head faced forward.Overall, the value is unmatched IMO. The high quality BPA free materials, leak proof design & fit are all well worth the cost. If you're in my position and you LOVE your bottle but are frustrated with SM options- give EIPOSAU a try! You will not be disappointed!

Fits: HydroFlask, Bubba, Room Essentials (Target)Doesn't fit: HydraPeakPerfect solution so far. Build quality looks pretty good, no off-gassing smells upon opening. Zero leaking, simple sturdy latching mechanism, convenient one-handed open / close and lock / unlock. I'm not completely sold on the long term durability of the handle, but its anchor points stick out far enough that you can put your own cordage handle on it. Bought a pack of push-up straws to go with it, everything's been perfect. I'm pretty picky with these things, I bring a 64oz smoothie and a large water bottle with me everywhere and use them constantly throughout the day - It's been a journey finding anything genuinely leak-proof while still being operated one-handed yet never opening accidentally. Will update with any issues.

This fits well with the wide hydro flask kids bottles. The look of it, it's very sturdy, have enough room on the handles, comfortable when carried and no leaks. The only thing is it has the plastic smell to it everytime you drink. No matter how much I wash it. I don't like that plastic material smell for my kids evevrytime they take a drink,.otherwise it's 4 stars for me.

I love this lid! Fit my bottle as described. Its easy to use and has a lock to keep it from randomly opening. Doesn’t leak at all. Has stood up to several drops and bumps. Overall worth it!

I never write any reviews but I am so frustrated I have to say something. The concept is great, but in practicality this is a solid NO.The cap and straw kit DO NOT COME WITH INSTRUCTIONS TO MAKE THE CUT OR ASSEMBLY. There isn't a measuring standard nor any type of aid for your bottle included. The straw must be cut in order to fit in your bottle. You'd think the seller or manufacturer would come up with a standard cut size that is bottle specific in the packaging, so the end user can actually fit it properly to their respective bottle, since this is advertised as a multiple brands bottles fitment.HUGE oversight on part of the seller. Apparently cutting the straw worked for some people, and there are many others like me. I can't imagine a person with zero calculating skills using this kit. Also the top part for the straw is solid white plastic. Would it have been so much more expensive to make it out of silicone like all other vendors?I purchased the cap with the straw since I want the straw option, but because there isn't any kind of guide and its a guessing game, I cut too short and now I'm stuck with the cap and wont be able to use the straw which totally defeats the purpose. BUY AT YOUR OWN RISK.

I’m absolutely in love with this Auto‑Flip Lid for my Hydro Flask. From the moment I popped it on, it elevated my hydration game. I especially love the Smart Button Safety Lock. The lock keeps the lid closed even when it’s tossed into my bag—no spills, leaks, or sticky surprises. It’s earned its spot on my bottle every single day. Sip smarter, spill less—100% recommend!

I hated the twist top lid. This was a perfect replacement without the need for a straw. The fit, durability, lock, spring opening, leak proof, easy cleaning are all a plus in my book. The price is excellent that I purchased 2 just so I can swap them out for cleaning.