CBC News. Needless to say we've sent Cathrine a new Thermal Mug for free - share your adventure stories with us (they don't have to be this dangerous!) and we'll share them on social media.

I don't know how your product came to Canada, but I'm so glad that I had your mug during my long cold night up there! I seethed the 50-minute hike home and looked forward to taking a gulp on my return instead. But no, that too was ruined by the thermal mug, which stubbornly refused to allow my tea to reach anything resembling drinkable temperature for a good few more minutes of being open to the air. It was so nice to share a sip of coffee, even if it was not very warm. We joked that it was iced coffee. When I reached safety after almost twenty four hours, what remained in the mug had still not frozen. I was curious about this product, as I did not recognize the brand "Lifeventure" (barely readable on the mug, amongst the dents and worn paint). I really love this mug. It has been in my car and on the mountain, and even in my purse almost every day. It's a perfect size, doesn't leak, and apparently blizzard The top of the Thermal Mug unscrews to house a teabag. But it also serves to allow pressure to dissipate as your drink cools. Lifeventure describes it thus " Expansion chamber with a pressure release valve in lid". It's also the perfect place to stash a Murray Mint. It weighs in at 300g, which is reassuringly heavy. And it feels rugged, being made from stainless steel - there are no glass thermos-style inners to shatter.I'm very disappointed. I've just returned from a 6-mile speed hike on a very blustery day. It's a route I measured out on my OS map and follows a valley floor from home to a pretty little view over a Surrey hamlet. I like to get to the 'turn around' point and allow myself 5 minutes for a drink and absorb the view. Today's 5-minutes were completely spoilt by the Lifeventure Thermal Mug keeping the cup of tea which I brewed before leaving home way too hot to enjoy in my short break. I recently found a battered Lifeventure mug, and since it looked like such a good quality mug, gave it a good cleaning and started using it for weekend A photo of the mug with my friends battered climbing helmet that saved her life during the fall on Mt. Haig