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Watching the sun rise over a sky-piercing chain of mountains just isn't the same without a cup of hot coffee in your hand, and the GSI Outdoor Infinity Backpacker Mug is just what you need for easy insulated sipping. The Sip-It Lid seals when shut to prevent spills and hold in heat while the collapsible webbing handle provides a comfy grip.

  • Clear polypropylene construction is lightweight, non-leaching, and fully recyclable
  • Insulated sleeve protects hands from steaming hot beverages and keeps your coffee warm
  • Sip-It Lid seals when shut to hold in the heat
  • Collapsible webbing handle gives a secure grip on the mug
  • Mug weighs in at a trail-friendly 3.5 ounces

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GSI Outdoors Infinity Backpacker Mug

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Here's what others have to say...

4 5

More than a decent mug.

What I like the most about the mug is the sleeve and the flip up lid opening.

I was using a MSR mug which is a good mug but it doesn't have a way to close the top drinking port. I have spilled hot drinks before just trying to move around in and out of the tent and just when you are not holding it taking sips. You set it down and things start getting jostled around and it spills. What I like about the lid on this thing is that it doesn't leak. Flip it closed and no worries.
I wasn't really sure how I was going to like the strap handle but it works just fine. I also like the fact you can pull the mug out of the sleeve to clean it . The sleeve has a rubberized non skid bottom so it won't slide if you set it on a un level surface.

For the price it is a better value than a lot of mugs out there.

I would recommend it if you are looking for a light insulated mug.

5 5

My go-to mug.

  • Familiarity: I've used it several times

I love this mug because it's insulated and holds a decent amount of your favorite beverage. The insulating cover is removable and the whole mug is nice and light. I usually store my coffee in it when backpacking also. Highly recommend it.

Can someone tell me if the "clear polypropylene...

Can someone tell me if the "clear polypropylene construction" means that you can remove the sleeve and actually use this as a measuring cup?
I just ordered the GSI nesting mug/bowl and was a bit disappointed to find out that they are pretty useless for measuring liquid.

Best Answer Responded on

You're in luck this time. The sleeve is removable which will allow you to see how much liquid is in there.

Will an MSR pocket rocket fit inside this...

Will an MSR pocket rocket fit inside this guy?

Responded on

fsup, no it does not. I was hoping the same thing. I bought one yesterday and went home and tried to fit my pocket rocket in the mug. It's about 1/4 to 1/2 inch too tall. Wasn't a deal breaker though. Haven't used it yet but seems like a nice mug. Hoping to use it to hydrate my pasta and rice dishes while hiking.