High quality material - The Vacuum double wall was made of high-quality grade 304 stainless steel. Travel mug double-walled insulation can keep beverages hot for 8hrs and cold upto 12 hours. There is condensation free exterior even while carrying icy cold water completely sweat free.Leak proof & non-toxic - The drinking cupvis made of BPA-free plastic which is durable and food-safe. Rust-free, odorless, lead-free. The lid was made of food-grade silicone, guaranteed high durability. The lid is 100% leakproof even when flipped upside down.Easy to operate – Lightweight thermosteel bottle, comes with a drinking cup which help you to drink during travelling, wide open mouth which make it easy to drink. The rubber design at the bottom prevents the cup from slipping or tipping.