# Looking for a flat Thermos / vacuum flask **URL:** \ **Category:** In My Humble Opinion\ **Created:** [April 18, 2015, 12:05pm UTC](https://boards.straightdope.com/t/looking-for-a-flat-thermos-vacuum-flask/717980 "2015-04-18T12:05:09Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![ToughLife](https://avatars.discourse-cdn.com/v4/letter/t/8797f3/32.png) [@ToughLife](https://boards.straightdope.com/u/ToughLife)\ **Post date:** [April 18, 2015, 12:05pm UTC](https://boards.straightdope.com/t/looking-for-a-flat-thermos-vacuum-flask/717980/1 "2015-04-18T12:05:09Z")
Does such a thing exist ? Need one for drinks (not food) to keep them cold or hot. All I could find are round which is not convenient to carry in a flattish bag. Gone trough all links on the first [page](https://www.google.co.uk/search?hl=en&q=flat+thermos&gws_rd=cr,ssl&ei=hkQyVZ2tHsbhaoSygIgM) … no joy. ---
**Author:** ![WhyNot](https://avatars.discourse-cdn.com/v4/letter/w/c77e96/32.png) [@WhyNot](https://boards.straightdope.com/u/WhyNot)\ **Post date:** [April 18, 2015, 12:36pm UTC](https://boards.straightdope.com/t/looking-for-a-flat-thermos-vacuum-flask/717980/2 "2015-04-18T12:36:11Z")
There are several insulated flasks which can help keep things cold with double walled construction, but I’m not sure they’re actual vacuum systems like a Thermos. I don’t know if they help keep things warm; they’re marketed to runners and hikers to keep water cool. [http://www.runningwarehouse.com/Nathan\_Fire\_\_Ice\_8oz\_Race\_Cap\_Flask/descpage-NFI8RF2.html?gclid=CjwKEAjwgcipBRDgxK\_3ztrBty8SJACRuv4dnAT\_k-whxs9WUhJtpFhlBcrxzacQaQqjR9QldOI8bRoCEgnw\_wcB](http://www.runningwarehouse.com/Nathan_Fire__Ice_8oz_Race_Cap_Flask/descpage-NFI8RF2.html?gclid=CjwKEAjwgcipBRDgxK_3ztrBty8SJACRuv4dnAT_k-whxs9WUhJtpFhlBcrxzacQaQqjR9QldOI8bRoCEgnw_wcB) > **[Nathan SpeedDraw Plus Insulated Handheld Water Bottle - 18 fl. oz. | REI Co-op](https://www.rei.com/product/867026/nathan-speeddraw-plus-insulated-handheld-water-bottle-18-fl-oz?cm_mmc=cse_PLA-_-pla-_-8670260001&mr:trackingCode=01C7F95F-1D9B-E311-90E9-BC305BF82162&mr:referralID=NA&mr:device=c&mr:adType=plaonline&mr:ad=53818231000&mr:keyword=&mr:match=&mr:filter=93949411960&msid=WlDC4zTX_dc%7Cpcrid%7C53818231000%7C&lsft=cm_mmc:cse_PLA)** > > The functional and comfortable Nathan SpeedDraw Plus Insulated Handheld Water Bottle boasts Fire & Ice™ insulation, a natural grip and easy-squeeze access to fluids. And this one is even flatter, being a hip flask shape, but it only holds 5 ounces, thanks to the freezer gel lining: [http://giftedliving.com/deer-season-mossy-oak-camo-freezable-insulated-flask?origin=product-search&kwd=&mr:referralID=2465d5a7-e5c7-11e4-82f7-001b2166c2c0&gclid=CjwKEAjwgcipBRDgxK\_3ztrBty8SJACRuv4djteB1kJPeziH43ntJBR0bCznJK0t-jLS09mtCLQ3GBoCRZXw\_wcB](http://giftedliving.com/deer-season-mossy-oak-camo-freezable-insulated-flask?origin=product-search&kwd=&mr:referralID=2465d5a7-e5c7-11e4-82f7-001b2166c2c0&gclid=CjwKEAjwgcipBRDgxK_3ztrBty8SJACRuv4djteB1kJPeziH43ntJBR0bCznJK0t-jLS09mtCLQ3GBoCRZXw_wcB) ---
**Author:** ![Skywatcher](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/skywatcher/32/254_2.png) [@Skywatcher](https://boards.straightdope.com/u/Skywatcher)\ **Post date:** [April 18, 2015, 4:15pm UTC](https://boards.straightdope.com/t/looking-for-a-flat-thermos-vacuum-flask/717980/3 "2015-04-18T16:15:22Z")
How about an [insulated canteen](http://www.ebay.com/itm/VINTAGE-THIRSTMATE-CANTEEN-TRAIL-BOSS-/361207009622)? I have a '90s version of the same model, double-walled and the cap has a vacuum seal. ---
**Author:** ![ToughLife](https://avatars.discourse-cdn.com/v4/letter/t/8797f3/32.png) [@ToughLife](https://boards.straightdope.com/u/ToughLife)\ **Post date:** [April 18, 2015, 9:39pm UTC](https://boards.straightdope.com/t/looking-for-a-flat-thermos-vacuum-flask/717980/4 "2015-04-18T21:39:25Z")
Thanks for your ideas, but those are not exactly what I had in mind. Appreciate.