Material: 304 Stainless Steel + PlasticCapacity: 600 mlFeature:1.Adopt high-quality 304 stainless steel interior, which is rust-proof, easy to wash and does not break.2.Double-wall vacuum technology keeps drinks hot for more than 6 hours and cold for about 24 hours.3.Slide cover without BPA, environmental protection and splash prevention.4.Superior powder coated topcoat, sweat-proof, easy to hold, specially designed for automobile cup holder.5.Additional sealing and lid cover provide maximum splash resistance. Drinking holes on top are easy to make it, and straws are easy.