I picked up The Opossum's Pouch Insulated Stainless Steel Tumbler and it has been a solid daily companion. The double-wall vacuum insulation keeps drinks cold for hours, and the powder coating feels durable without being slippery. The laser engraving looks permanent, and the clear Polar Camel lid fits securely. It's 18/8 food-grade stainless steel, BPA and lead free, and sweat-proof so no rings on my desk. Hand wash only, which is easy enough. I also like that profits go to a fund helping Licensed Virginia Opossum Rehabilitators with vet treatment.