Designed for Travelling, Shopping, Camping & Work. 350ml Capacity. Lightweight & Folding Up to Easily Fit into Any Convenient Place. Silicon Lip to Cover Drink Hole. Made of a Blend of Bpa Free Plastic & a Flexible Non-toxic Food Grade Silicon, Making It Safe & Easy to Clean. Available in Grey, Blue, Violet, Green, Light Blue, Pink. Minimum Quantity: 50.