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: Is this really made of canvas/nylon or is it a vinyl/pleather material?
Document: Super fast delivery with my Prime account. The bag is made of really nice material for punching. Excellent even if you just want to work on your cardio.
looks tough, made from durable material. using everyday. it looks good and easy to install. this is 70lbs so it suitable for medium build people
This is a very well built bag, with ideal filling. The poly canvas is brutal on your skin, so you really need gloves to really go at it. I purchased this one for my son, and it is perfect for little guys. It also comes with chain, and all the hardware needed to hang it from a hook you must provide.
The canvas is in great condition, the bag contents are well distributed, and so far no hard/soft spots after using it. One of the best bags I've used.Definitely recommended.
I like this product however I didn't realize the material. So it's impossible to use without hand wraps or gloves which was my error but its amazing quality and can't  beat price
I like the canvas heavy bags more so then others, and it's great if you are doing cross training. The reason why I'm giving it 3 stars is after only a couple of months the upper straps are starting to fray a little. The construction of the bag itself is solid, but the straps are not so great.
I would recommend this for any teenager or women. It's a good size and weight for beginners. A little light for stronger heavier hitters. The material is something else! I can hit this thing without gloves and it doesn't rip my knuckles apart.
Purchased for my grandson for sparring practice along with his martial arts love. It is so excrptionally nice and I was pleasantly surprised at the beautiful red canvas. It comes with the hanging chains. I highly recommend this product. I'm sure he's going to love his present. He is a HS Junior, but it seems perfect for all adults.
Ordered this bag for my husband's birthday. He said it had to be canvas. Checked out local stores could not find anything canvas at this weight for under $100.00 plus shipping was about $60.00. This is a high quality bag that was delivered free with in just a few days. The whole family uses it now for exercising, stress you name it. We had no problem hanging on a beam in our basement.
I'm not exactly sure why they call this bag an "MMA" bag since I can't tell the difference between this and a regular heavy bag. However, it's a great bag for the price. The material feels like it's of good quality. I definitely would recommend this bag to anyone.
Answer: yes