This Set of 4 Stanley Stacking Vacuum Pint Glasses drops from $55 to $43.93 to $32.94 when you add them to your cart at REI.com. Shipping is free when you spend $50, or you can choose in-store pickup to avoid the $5.99 shipping charge. Even with shipping, this is the best price we found by at least $11. They're made from 18/8 stainless steel, and they won't rust. They feature double-wall vacuum insulation that will keep drinks cold for four hours, iced 15 hours, or hot 45 minutes. They stack for storage, and they're dishwasher safe. Sales tax is charged in most states.