Tough, but incredibly thin and light - the Microlite 1000 Twist keeps a liter of cold stuff cold for 32 hours, and hot stuff stays hot for 18. That's a long time.

• Weight: 13.0 oz
• Material: Stainless Steel, Polypropylene, Silicone
• Major Dimension: 32 fl. oz.
• Includes: Lid, 1 L Vacuum Bottle
• Dimensions: 4.7 in x 3.6 in x 8.3 in