The double wall insulation keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. 

Different LEAK PROOF lids. 

Made of 18/8 Stainless steel that is BPA free and non-toxic. It will never leave a metal taste or rust. 

Great for the outdoor or gym enthusiast that will enjoy a memorable product they'll remember, & due to its durability will stand the test of time.