Healthy Material The Vacuum double wall was made of highquality stainless steel that is completely tastefree rustproof and leakproof The lid was made of foodgrade silicone BPAfree and guaranteed high durability Leakproof Design The coffee mug lid comes with a silicone seal that prevents the drinks from spilling Air Vent on the lid allows beverages to flow out smoothly without gushing or overflowing The rubber design at the bottom prevents the cup from slipping or tipping Perfect Capacity 510 ML capacity small and beautiful easy to carry Narrow body design makes it easy to grab and go also fits most car cup holders and coffee makers Easy to Carry Enjoy your coffee easily wherever you go Suitable for use indoors and outdoors such as at home parties travel school riding and office time Travel To Go Vacuum Coffee Cup Wide mouth shape and with beautiful shape narrow base The design of the cup is made to feel natural in your hand and bring a good sense of use for you you can enjoy your coffee tea and juice quite nicely Large capacity insulated coffee mugs even if reusing our thermos stainless steel travel mug just once a week would make a massive difference and think of all that money saved on takeaway coffee