AONIJIE2PCS TPU Collapsible 170ML Nutrition Energy Gel Soft Flask Water Bottle Reservoir for Marathon Hydration Pack

I used these for homemade energy packs for long run days. The size is great and the top has nice size opening for getting the contents out. Unfortunately seal is very poor. If there is any pressure applied to the soft flask, the contents leak out and you end up with a sticky mess. Maybe if they put an oring inside the lid it might not leak as easily.

I previously bought a pair of these and found, as other did, that they are kinda leaky. I tried to find an appropriate sized food safe silicon o ring but couldn't. I solved the lack of seal by wrapping the thread with plumber's tape! No more leaks! So, I bought a second set for those long excursions. Highly recommend with the caveat that you'll need some sort of seal so your fuel doesn't leak out.

J'utilise pour transporter mes gels maison. le bouchon n'est pas étanche au niveau du pas de vis tel que vendu. J'ai du ajouté un ruban d'étanchéité de plomberie. Ainsi, le tout est étanche et la succion est possible!! Pour le reste, ça fait la job.

While I very much liked the product initially, I am disappointed to have had to dispose of one after only a few uses due to it leaking my gels. If I can't carry it in my pocket without leaking, it is unfortunately useless

J’aime beaucoup la souplesse du matériel, et je peux facilement mettre mes gels énergétiques maison.

The kids don’t seal therefore leak. Wouldn’t recommend.