GoPouch is easier to use than zip-top bags, since the pouch stands upright and the rigid frame stays open, enabling easy-access snacking and mess-free filling. And, the pouch itself is made from the same food-grade silicone as our tried and tested GoToob+ bottles, so you can be confident that GoPouch is BPA, PC, and phthalate free. As with every humangear product, it’s also backed by our lifetime warranty FEATURES Rigid flex-frame allows pouch to stay open SlideLock sealing rail creates quick, leaktight seal No more fussing with pinch-type seals or wondering if the entire seal is closed Smooth interior surface wipes clean with no nooks and crannies Flat base allows pouch to stand up FDA food safe material BPA-free, PC-free, and phthalate-free TECH SPECS Weight S: 125gM: 160g Dimensions S: 11.5 x 20 x 3.2cmM: 16.5 x 20 x 3.6cm Warranty Lifetime Material Bag: SiliconeFrame: Polypropylene (PP)Slider: Polyoxymethylene (POM) Volume S: 400mlM: 800ml