This is the To Go shaker from Design Letters. It is ideal for active and health-conscious people. Perhaps it will also work well for you?

Plus:

• Great for preparing smoothies, cocktails and other liquid snacks.
• BPA and BPS-free tritanium is used in the production, which guarantees safe use and durability.
• It does not leak, so it is safe to use even during physical activities.
• Available in several beautiful colours.

Available versions:

• To Go Cocktail shaker 500 ml beige, To Go Cocktail shaker 500 ml nude, To Go Cocktail shaker 500 ml olive