The perfect blend of strength and style. This tumbler/shaker combo gives you the best of both worlds—sip or swig dual lid, effortless mixing, 24-hours cold insulation, and more. Once you try it, no road trip, workout class, or lifting session will be the same without it.?

Features:

• Keeps beverages cold up to 24 hours
• Leak-proof with straw removed
• Rounded base for better mixing
• Dual-function lid for straw or straw-free sipping
• Double-wall insulated stainless steel
• Measurement markings
• BPA and phthalate-free
• Powerful mixing system