The 15 oz Weave tea infuser mug is made from new bone china. The exterior of the tea infuser mug features a basket weave textured design. The top part of the mug where you drink is smooth. The mug includes a stainless steel filter which is perfect for loose leaf tea. The mug has a comfortable handle and nice weight and feel. It is not too heavy. The handle does not get hot in microwave. The silicone lid is heat resistant to 450 degrees. The lid can be used as an infuser holder and coaster. The lid is not secure, so you cannot use as a travel mug. BPA free. Dishwasher safe. The mug and silicone lid are microwave safe. Do not microwave the stainless steel infuser.