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Paul Green

I have two, one is 500ml the other 1000ml

alexandra venturoli

Io uso la bottiglia piccola d'acqua quando sono fuori. Invece a casa uso la bottiglia da litri 1,5

Vicki Kieu

I have many but usually forgets to bring them with me.. lol. I have them in all different sizes too but my favorite is the lululemon they are very well insulated. 

sera

I use a stanley! I love it so much!!

healthygirl

Mine is 750ml bottle. It is good amount of water bottle for me when I go workout.