Thanksgiving Day Only.  20% Off Your Entire Order - Enter Code: THANKS17 at Checkout.  Some Exclusions Apply.  Click For Details.  

Only available at Mast Store Online on Thursday, November 23, 2017. Cannot be used with other offers, on sale items, or to purchase gift cards.

All Mast Stores, including customer service, are closed on Thanksgiving Day to allow our staff members to spend time with their families and friends. 

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Everyone knows that a good night's sleep is important to your well being. Why should spending a night on the trail be any different?

In 1971, two engineers formerly from Boeing, took up the challenge from one of their friends to make a better outdoor sleeping mattress. It had to be lightweight, comfortable, and warm. The result…Therm-a-Rest. There are several different designs and sizes, even ones made specifically for women.

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