1. Material: 304 stainless steel + silica gel 2. Capacity: 500/750/1000/1500ml 3. Weight: about 323 g for 500 ml, about 380 g for 600 ml, about 460 g for 750 ml, and about 532 g for 1000 ml 4. Size: about 21x7.3cm for 500ml, about 25x7.3cm for 600ml, about 28.5x7.5cm for 750ml, and about 31x8cm for 1000ml 5. Features: vacuum double layer, 24-hour long-lasting insulation, portable and leak-proof, 304 stainless steel material, safe and healthy, durable, easy to clean, non-slip rubber bottom, round cup without burrs
