Smartshake Reforce Stainless Steel, White, 30 oz (900 ml)

• Battle-Tested - More than 25 Million Happy Customers Since 2009
• Durable Design - Keep Using it for a Decade or More
• Leak-Proof - 100% Guaranteed by our Smartshake™ Warranty
• Comfortable & Lightweight - Weighs only 170 grams / 0.375 lbs
• Engraved Measurement - Units of Measure Engraved on the Inside of the Bottle
• Practical & Easy to Clean - Wide Opening for Simple Cleaning

This is a single wall steel bottle. 

Reforce Stainless Steel Shaker is a resistant shaker bottle. The tough food-grade stainless steel is ultra-durable and hygienic. Lightweight yet made to last. The leak-proof lid and soft loop handle make it a natural part of your healthy lifestyle. Stainless steel is one of the most hygienic materials available.

Hand wash only.