*Pre disclaimer…I did NOT receive compensation for my review of this product.” This “to-go” frost buddy is the real deal! My coffee was purchased at 0500, the picture uploaded was taken around 1630 the same day. Ice was still present, and my coffee was still cold after the many hours! I am so pleasantly surprised at the efficiency of this product. I have recommend this to my hard sell co workers, many have been just as impressed that they will be ordering!!! One recommendation, you definitely need to order the stainless steel straws to go with your new Frost Buddy to enhance the experience!!!!