Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Would you feel comfortable throwing this in a purse? Is the locking mechanism one that wouldn't accidentally open hitting something in a bag?
Document: I would have given five stars had it not been packed poorly.The mug was packed in a jiffy bag with one layer of bubble wrap.As it was an intl delivery, it took a beating and I ended receiving the mug with a dent and scraped paint.A sort of field test I would have been happier without. It's in working conditionanyway (looks credible...) and I cannot be bothered to go through a 10 week return cycle and potentiallyreceiving another one dented.
Grew up with my dad using Stanley a thermos. I've tried a lot of other coffee mugs including Bubba and Thermos brand. I use a coffee mug almost every day of the week,  and so far this mug has been awesome. Great that it can be used one handed, no need to flip the top up or slide a piece of plastic to open/close like other mugs. Would most definitely buy this product again and cannot foresee having to buy another one for a long time.
I got the 12 ounce version and it truly is spill and leak proof. It can be thrown in a briefcase or bag without a second thought. Easy to disassemble and clean. Only thing I'm not crazy about is the button to depress to get a drink. Takes a little mastering but all in all, I would recommend this travel mug.
I might just order another one in the smaller version though..I feel like I am drinking from a thermos
It keeps my coffee hot for a long time. It doesn't leak even when turned upside down. It fits in my cupholder. It is truly one hand operation. You push the button with your index finger to open the valve and drink. When you release the button, it closes and reseals. The top easily comes apart into three pieces for cleaning.
I got this one for my wife, I got myself the midnight blue one from a different distributer, but they are exactly the same. well not exactly, this one sounds like it has sand or something in the vacuum part. it has ZERO effect on the mug but you can hear it when you turn it over.on to the good stuff. this thing is water tight!! you have to give it a FEW good shakes to get a single drop to drip out.
I got one of these as a Christmas present and have been using it.Mine is indeed non-leaking. It takes a little time to get used to pushing the button in to open it up but I think you are going to have to give up some convenience for the leak proof design. It is nice in the car because if it falls over it does not leakI have taken it out snow hiking a couple of times. I just put it in my pack, Not real cold.
I don't write many reviews, but I've owned over 100 travel mugs over time and this cup deserves the recognition. Up until now, my favorite travel mug has been one I got from Starbucks, which they no longer make. As good as it has performed, however, it does have its cons. You have to manually open AND close it. This may be a pro or con depending on the person, but should you forget to close it, your leakproof cup is no longer leakproof.
After receiving my Stanley one handed mug I am extremely impressed by the quality put into this mug,it keeps my coffee very hot until its gone. I am really glad I decided to purchase this mug as I thought it was a little pricey but now that I have it and used it I feel it is worth every penny. I am a great coffee lover and this is exactly what I have been looking for! The one handed button works great and easy to use,great idea!!!
That was my fault, not a fault in the cup. Since that time, I've never had a problem. The container keeps coffee really hot for HOURS and it really does give you "one-handed" drinking which is great. It cleans fantastically well - very simple inner mechanism - so I can thoroughly clean the cup each and every time I use it.
Answer: no