Bear Grylls Triple Wall Vacuum Insulated Bottle, 20. oz (charcoal gray, stainless steel and midnight black versions) | $10 | Amazon
Bear Grylls Triple Wall Vacuum Insulated Bottle, 32 oz. (midnight black, charcoal grey, ocean blue, and stainless steel) | $15 | Amazon
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This $10 Bear Grylls Triple Wall Vacuum Insulated bottle is spill-proof, leakproof, and can keep drinks cold for up to 24 hours or hot drinks (see: pee) warm for 12. Using the coupon will cut the price to just $10 on the 20 oz. charcoal gray, stainless steel and midnight black versions.

If you want the larger, 32 oz. model will cost just $5 more for midnight black, charcoal grey, ocean blue, and stainless steel. Just remember to clip the coupon on the page, and... if you’re faced with even the mildest inconvenience... okay, I’m going to grow up now.