Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: I need a womens size 8. Would a medium fit?
Document: So this was my second attempt with these. Following the reader posted size chart I ordered the small size for a women's size 8 foot. They were so small it was like trying to wear a child's shoe. I returned them for these, the medium. Whilst they do 'fit' they are very, very tight over the top of the foot-opening and very loose everywhere else. Within 20 minutes they'd rubbed the top of my foot raw. Fin socks, even the thinnest pair I own, did not fit in these with my foot.Really uncomfortable, fit weird.
It's so hard to know which size to order. I was hestitant to order via I-net, but couldn't locate a store that sells fins nearby.Based off the size description & Lacey's review, I ordered my daughter a size (S)5-7 Green.Her shoe size is a 7.5 ladies. So I sized down for mens which would put her in a men's 5.5 which is the green fin.From Lacey's review, she included the manufactures size chart:  S (Green) - US M 5-7,  US F 6.5-8.5,  38-39.However, they still do not fit properly.
Great fins. They fit big. I would normally wear  medium but got the small. So make sure you read the comments to find your fit.
Using Vaseline on the top of my foot does help keep the red mark smaller but I don't swim extreme distances in these to limit the pain. Maybe a bigger size would have helped just to get some added foot space, but the medium is perfect side to side and in length. Oh well. I still use them, and still love the way I move through the water with them on!
I have always used training fins and decided to try a smaller web size. The fitting size was snug and comfortable. I would recommend that you research the size you need by reading the reviews particularly if you have narrow or broad feet as this will give you a tip to the size you need. Don't go to a bigger size if you take a narrow shoe size. The fin is excellent and well made and you will feel the burn in your legs if you had been using a larger web ( that is the paddle length and width).
These will definitely give you a workout. They are quite dense and therefore, heavy. I am not sure if I like this heaviness or not...the weight gives you a workout, but they also make me feel a bit as  though Im wearing weights on my feet.For those wondering about sizing; I am a woman&#8217;s 8 and I have wide feet and the yellow ones fit me perfectly. They are not too tight, so I am sure an 8.5 would also work.
These are my favorite pair of training fins out of 3 pair I've tried to date. I wear women's size 8 shoes and I bought the green fins. They run true to size, no rubbing, no blisters. I really like the length of these fins,not too long. I would recommend them if you are looking to improve your stroke and want a little assistance.
I am a beginner swimmer (middle aged) and find these fins helpful when doing laps in the indoor pool.I am a ladies size 9, and the medium fit me fine. They do not hurt, and are easy to get on and off.
These fit perfect. I wear a woman's size 9 shoe and this one is a large. I previously ordered a medium and it was just too tight. Nice quality; very comfortable; I am very pleased. If you wear a woman's size 9 shoe but have a more narrow foot; then the medium just might be okay.
Good fit- the yellow is Medium- I'm size 7.5. Definitely improved my swim. Felt it in my calves the next day. A good soreness!
Answer: yes