Double walled Vacuum insulated technology keeps beverages hot or cold for 12 hours, Inner coating for better temperature retention. A unique bottle that makes pouring completely hassle-free and spill-free, rust proof. Condensation & sweat / straw free thermal: No condensation on outer body even while carrying icy cold water completely sweat free. Leak proof & non-toxic: leak proof design, contains no toxins completely BPA and phthalate free. unused product. more colour availabai in my profile,pls check out pls no bargaining or low bargaining like 400rs.