Now sold separately to help minimize unnecessary spare parts and lessen environmental impact, the straw tops are designed to only fit 350ml and 500ml b.box Insulated Drink Bottles. Made from silicone, the new spill-proof, easy drink straw has a simple and easier sucking action for all-day H2O on the go.

Dishwasher safe. The straw top is made from silicone, the stem is made from PP BPA, Phthalates and PVC free.