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: Are they one size fits all? There is nothing about sizes.
Document: I've been to the major outdoor stores dragging my waders and water shoes tring to get a reasonable fit with no luck.Returned pairs from on-line as well.These are the only pair that don't weigh a ton and won't wear a hole in the heel(soft rear strap) and are open on top,so they really do fit any one.Good deal.
I recently purchased a float tube that included these fins. At first glance I was not impressed. However, when I used them I was very impressed, they adjust to any size (womens or mens, and teenagers) they were light weight and easy to put on and easy to get out of. As you know in fishing, easy is very important, also something that will hold up under stress us great.
light weight and easy to pack in to fish the small water. a great product for the price and works perfect with boots
Took these out on my caddis nevada float tube the other day. Though plastic, they seem durable enough and the straps make it so that even the bulkiest of wader boots will fit well. They make paddling seem almost effortless for me, but maybe that's just because i do a lot of leg work. I'd definitely recommend them.
These very thin, hard plastic fins snapped in half as soon as this 6'5&#34; 280lb. former  NFL linebacker tried to kick away from his dock.very disappointed.thought they would be pliable rubber fins. Oh well. I'll order new fins from someone else.
The fins fit well, but my son hasn't been able to use them yet. It is the wrong time of year here. He is looking forward to using them during fishing season.
I love to go tubing in the river on my floaty, and these fins make the perfect floaty companion tool. Not only can you wear em on your feet over your water sandals and kick paddle your floaty, but you can hold on to em in each hand and paddle yer floaty with your arms. In a breezy situation you can hold em up into the wind and sail along quite briskly. Super easy to get in and out of. I love em
Answer: no