Unique Bamboo Exterior Our 500 Ml capacity Flasks are made of Bamboo giving them a unique and stylish look No two are alike Each tumbler has a unique grain and is made from highly sustainable organic bamboo Food Grade Stainless Steel Insulation The interior is constructed from 188 FoodGrade Stainless Steel with Double Walled Vacuum Insulation technology Keeping warm beverages warm and cool beverages cool Infuser Strainer 2 piece detachable Infuser and Strainer Brew your favourite loose leaf tea or coarse ground coffee Use it to brew your detox drink or simply infuse the water with fresh fruits There unlimited possibilities with this EcoFriendly No harmful plastic chemical or toxins Our 188 Food Grade Stainless Steel strainer infuser basket interior and vacuum seal lid are all tested to the highest standards and are BPA Lead Free Neoprene Sleeve Gift Packaging Each bottle comes gift ready in a stunning packaging a beautiful tube box You also get a complimentary premium Neoprene Sleeve to carry around your flask comfortably