Called the Travel Tumbler, the $24.99 product melds a traditional Thermos bottle with a mug. I have used Thermoses for years in the outdoors, from camping trips to winter ice climbs.

KETIEE Travel Mug 12oz, Insulated Coffee Mug $14.97 This is the perfect budget coffee tumbler. (Amazon ) If you want a simple, cheap but colorful option, a Ketiee travel mug may work well for you.