Come and see our amazing products. This coffee mug is made of durable borosilicate glass.The thermal silicone sleeve and PP lid are Food-grade and BPA-free.It's free from toxins and chemicals,will not taint the flavor of the coffee.This one has a closable lid,soft sleeve,and a slim base that fits in cupholders.Our glass mug is microwave safe after removing the lid.The PP lid, silicone seal ring and sleeve are detachable and dishwasher safe,so it's very easy to clean.our mug is great for your home, office,or on-the-go, and perfect for your hot or cold beverage,your coffee, milk and tea.A ideal gift at the promotional campaign Pls confirm with us about the packing info, stock color and exact production time before placing your order.