Simple Modern 18 fl oz Insulated Stainless Steel Summit Water Bottle Dreamcicle The Simple Modern 18oz Stainless Steel Summit Water Bottle with Straw Lid is perfect for being on the go! The vessel is cup-holder friendly, and our customer-favorite Straw Lids are leak-proof when closed. We do not recommend using our Straw Lid for hot or carbonated beverages. The Straw Lid is BPA-free and dishwasher safe on the top rack. The Patent Pending Straw lid is leak proof when closed, and has a convenient handle Double-wall vacuum insulated, kitchen grade stainless steel insures that drinks stay cold for hours Cup holder friendly design, makes this easy to fit in most backpack pockets, car cup holders, and is easy for small hands to hold