Review on 16Oz Bamboo Double-Walled Travel Coffee Mug With Stainless Steel Infuser - Eco-Thermos For Hot And Cold Beverages, BPA-Free, Ideal For Coffee, Tea & Fruit by Angel Larson

At first I was happy with how good quality this was, then I found out how phenomenal it was at retaining it's heat/cold. . . Must buy another, but I want unique designs to keep mine distinctive from familys.This guy kept my ice water icy after all day locked in a hot car mid summer. On the hot side it kept about an inch of tea hot for 4 hours with no lid on it.All of the heat transfer is through the lid wich minimizes almost all of your heat loss/gain.I like the additional screw on basket, though I haven't used it yet.My only complaint would be the large Pollux logo at the top which seems out of place.