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Now you can stop drinking coffee out of water bottles.

From morning coffee to afternoon happy hour, the Sea To Summit X-Mug pops up to hold your favorite beverage, then folds flat for easy storage. This convenient mug features an accordion-style design and food-grade silicon sides, as well as a sturdy nylon top ring to maintain shape.

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Sea To Summit X-Mug Collapsible Mug

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Here's what others have to say...

5 5

Alpine Fish

Member since 

Extremely packable and simple to use. A friend recommended it for lightweight backpacking who also enjoys gourmet cooking. Found out you can nest it on top of a JetBoil (put some water in Jetboil first) and use it as a double-boiler to make backcountry fondue!

5 5

Rat a Tat Nat

Member since 
Groups:
  • Familiarity: I've put it through the wringer

Compact, tough and easy to clean. I wouldn't use them for backpacking because they aren't the lightest, but they are awesome for car camping. Great buy!

nicely sized cup

Bucket

Member since 
Posted on

Just used these rafting the middlefork of the salmon, and always kept one handy in my jacket pocket for whatever the beverage dujour might be, and one in the cooler for anyone who might swim up to the bar. A must have for any excursion.

4 5

pho5504966

Member since 

I like this mug. It's compact and nests with the bowl. There is a plastic taste to the semi rigid ring around the lip of the mug. And the silicone is thin, so hot drinks have to be held by the ring around the lip or with a rag. But overall I like this mug.

5 5

Salonick Nalod

Member since 

I love these things. I have 3. They are great for coffee in the morning and also as a bowl for my dinner at night. Extremely easy to clean/wipe down too. When I'm backpacking this gets used every day at breakfast and at dinner. No, it doesnt have a handle, but I must say, holding a piping hot silicone cup of coffee in your bare hands on a 20 degree morning feels damn good!

Can you microwave your tea/coffee in this...

csts

Member since 
Posted on

Can you microwave your tea/coffee in this in your motel room the night before you leave on the trail?

csts

Member since 
Responded on

oops -- just saw this had already been answered 5/26/11 -- and the answer's YES!!! Thanks, Phil Maher -- you're great for providing so many answers for all of us! :)

Is this offered as a set of four, or do...

JSexton011606481

Member since 
Posted on

Is this offered as a set of four, or do you pay $11.90 per mug? The reason I ask is because the photo shows four colors, but the options backcountry.com gives you indicates that there is only "One Color." I thought maybe that's because these are sold as a set. Otherwise, you don't have a choice in color?

Phil Maher

Member since 
Best Answer Responded on

Nope, just one at a time. Typically the warehouse guys will just pull whatever color comes up first, but I've sometimes placed an order by phone and requested something specific. They try their best, but it doesn't always happen. As for the "one color"- it could be that one or the other is all they have in stock, or that it's the grab bag. In either case, worth a quick call to clarify.

JSexton011606481

Member since 
Responded on

Thanks for the helpful response. Not too concerned with the color choice, but I do need to order more than one mug.

I love the X-Mug but mine has developed a...

Scott Shewmaker

Member since 
Posted on

I love the X-Mug but mine has developed a small hole at one of the folds, so now it leaks. (No idea how it happened.) Any suggestions on how to repair it? Nothing seem to stick to the silicone. Or could it still be under warranty? There's no warranty info on the Sea to Summit website.

Dean Whitehead

Member since 
Responded on

You can try and contact Sea To Summit directly, or if you purchased from Back Country, they have a 100% return policy...

Phil Maher

Member since 
Best Answer Responded on

Yeah, call STS @ 303-440-8977. Ask them to replace it under warranty, since it's lifetime. The fact that it developed a hole directly on one of the folds is easily a matter of making the argument that it was due to material failure. Or, as Dean said, if you bought it here, BC will replace it unconditionally as well, maybe even faster.

Scott Shewmaker

Member since 
Responded on

Thanks for the info Phil & Dean. I'll see if the retailer I purchased it from (not BC as I didn't know about you guys then) will take it back under warranty. The failure may have been due a thin spot that was there since day one. I would buy one again though.

Is there a difference between the X Cup...

Friction Jack

Member since 
Posted on

Is there a difference between the X Cup and the X Mug? Volume and weight are listed as the same.

Federico Garcia

Member since 
Responded on

Maybe there is a mistake in the specifications but as far as i know is that the Xcup has a capacity of 250ml (1cup) wile the Xmug is 480 ml (almost 2 cups).

Phil Maher

Member since 
Best Answer Responded on

The x-mug has a 16oz (480ml) capacity and weighs 2.7 oz. The x-cup has an 8.3oz (250ml) capacity and weighs 1.6oz. The cup and the mug are also calibrated and have graduations on the side in both fractions of a cup and ml.

5 5

Bishop

Member since 

I used this cup with this,http://www.backcountry.com/gsi-outdoors-collapsible-java-drip#review_200078695 to make coffee. I was worried that the weight of the coffee make filled with water might cause this cup to collapse to its storage form. No problem though it worked just fine. And as a bonus you just about fill the cone of the coffee maker up with hot water and fills this cup just right when it drips down through. (Might have to add a bit more water.)
Real easy to clean too.

Is the Sea To Summit X Mug marked with...

shigadeyo

Member since 
Posted on

Is the Sea To Summit X Mug marked with measurements? If so, at what intervals? Thanks!

Phil Maher

Member since 
Best Answer Responded on

Yes, the graduations are marked in both fractions of a cup and in ml.

5 5

carrie

Member since 

On my last cold weather hiking trip I wanted to make a cup of tea. So much more easier to use this cup than try to drink out of my cooking pot! Definitely worth taking along!

5 5

The Blue Bomber

Member since 

This thing rocks. When it's folded up, it absolutely stays folded, unlike the x-bowl (but I still love the bowl too). Very lightweight, easy to pack, and it isn't as hot to hold as you might think.

Can you put this in the microwave? I am...

Set Erekson

Member since 
Posted on

Can you put this in the microwave? I am liiking for something to make tea in after riding my bicycle to school.

Andrew

Member since 
Groups:
Responded on

I would say no. This item can handle hot liquids, but in the microwave it would most likely melt.

BAinUT

Member since 
Responded on

Yes, it's completely safe for microwave use. Silicone has a safe temp rating of 428F/220C and your usage will never be greater than 212F/100C. The Nylon lip has a temperature rating of anywhere from 390F/199C to 490F/254C depending on the type of nylon, but the ring would be insulated by the silicone, so it's not even an issue.

Phil Maher

Member since 
Best Answer Responded on

STS is very specific in stating that this is both microwave and dishwasher safe.

http://www.seatosummit.com/products/display/71

without a handle...doesn't it get to hot...

Lynn

Member since 
Posted on

without a handle...doesn't it get to hot to hold coffee or soup?

John Hansen

Member since 
Best Answer Responded on

That is where the solid ring at the top comes in, for support and a place to hold when drinking hot beverages.

5 5

Michael Facciolo

Member since 

The X-Mugis a legit backcountry mug. It's highly collapsible and pretty lightweight. These things are food safe, can go down to 40F, up to 356F, can be used with boiling water, and are dishwasher safe. Talk about bombproof. These things rock! Plus, this stacks perfectly with the X-Bowl.