Ebay offers Stanley 40oz Stainless Steel H2.0 Flowstate Quencher Tumbler for $31.50 (reg. $45) with free shipping. 

Product Description:
•11 hours cold
•2 days iced
•18/8 recycled stainless steel
•Double-wall vacuum insulation
•FlowState 3-position lid
•Car cupholder compatible
•Dishwasher safe
•BPA-free