GSI Outdoors Infinity Backpacker Mug I Lightweight, BPA-Free Coffee Cup for Travel, Camping Gear, Backpacking and Outdoors - 17 oz.

This lasted only about three trips before the seal on the lid fell off (which I didn’t notice until it was too late to try to find it because I had moved on), which then leaves it no longer leakproof. It was great while it worked (for the very, very short time I did).

Bought this to save cups when buying coffee, feels great to not waste. survives very well in a back pack, can be held comfortably. may have a hard time fitting in cup holders. Ive made oatmeal in this cup. the markings wear off pretty quickly tho, not a huge deal. would sip again 10/10

Took this on my 105 mile Colorado Trail Backpacking trip. Also purchased the coffee maker, that stores away in the cup. Worked great!

Awesome little cup...as described

Really good cup. Light and stable, can be used both indoor and outdoor. I just think whether I need to buy a another one to use in the office.

Perfect, used on AT!!!

Love these little mugs! Super light weight and double as bowl for soups, etc. Used them as stocking stuffers! Everyone loved them

We were looking for a non collapsible cup option to take on our thru hike of the Foothills trail. These are insulated slightly and the lid fits really tightly and are water tight. We used these to hydrate oatmeal and to make instant coffee mostly. The tight fitting lid makes it good to pour in a drink mix with water and shake it up. We do not like putting drink mixes in our water bottles. Also these are easier to clean than the collapsible cups.

I have 3 of these mugs for backpacking with my family. On the last trip I got distracted and carabinered a mug full of coffee to my backpack and forgot about it. An hour up the trail I remembered it and to my surprise, it hadn’t leaked one bit. I have noticed though, that if you put the lid on while the coffee is still steaming hot, the excess steam will push the lid up a bit. Just vent the steam out, re-shut the lid and you’re good to go. Doesn’t keep hot liquids hot as long as say a yeti, but it does okay. Worth the minimal weight.

These were recommend by the RMI guides whom I choose for my Rainer summit. I believe they already researched this item well since it was whatever I need. Following were the expectations:- -Insulation for cold weather so that it keeps you hot beverage hot at below freezing temps -Easy to carry and clean -light wright and good looking -Spill proof lid and marking for measurement -Easy to hold and carry It satisfied all the above points plus I was able to stash some stuff inside for protection like my headlamp/teabags/oatmeal packets etc. The outer lining comes off if required to wash. I havent had it slip yet, maybe because its new. I will report back if I observe something extra that I havent yet. **If you find my review useful then please click the Yes in helpful. Keeps me motivated to share more experiences with the community**