Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Can you see through this mat?  My tub is old and the paint has worn away in spots on the floor and I want to make sure those spots are covered up.
Document: I've gotten a lot of bath mats over the years and I have to say this one is the best! It's made from high-quality plastic, and I didn't have any of the usual residual curl issues when first using. I saw some other reviews when I ordered mentioning an unpleasant smell but I didn't have any such problem with the one I received. This is a really good bath mat. As with anything of course measure your tub to make sure it'll fit the way you want.
Extra long which means it actually covers the length of a standard tub. Bought it for my constantly slipping son in the bath tub. Bought the clear one so I could see mildew on the bottom. Bought the extra long one because he tramps all over the tub area.Suction cups are strong enough that a 22 month old can't lift it. Water flows well enough that I see no mildew after 2 months of use.Buy it if you want it.
This is a good tub mat. I like that it is long enough to cover the whole tub since our little man likes to scoot around a lot. It is kind of a pain to make sure that each little suction cup is pushed down so the mat doesn't float around. But once done, it holds well until you pull it up to clean.
I see that people complained about smell or the mat not sticking to the tub. There was only a VERY slight vinyl smell when I opened the box and so far have not had any issue with it not sticking to the tub. I put it in, turned on the water and put my son in right after.He was a little freaked out at first since he's never had anything on the tub floor before, but he was fine after a minute. It's nice to not have to worry about him slipping!
Upon inspecting the issue, I found that directly where the mat was making contact with the tub, the mat had actually caused the bathtub finish to bubble and blister, similar to what you would see using a paint stripper to strip paint. This cannot be safe! In addition to completely ruining our tub finish, which we will have to have done again, it is also very slick on the feet and does not provide that much traction.I urge anybody reading this review to consider any alternative to this bath mat.
It's a very nice color. Very playful, for a kids' bathroom, but it could also be sophisticated and serene for adults as well. I've had no problems with mold or mildew, but I do make sure to pull it up and suction it to the wall of the tub after each use, to let it drain.
This mat was exactly what we needed. It fits the entire tub floor so that there are no exposed spots that might pose a problem. Also, it's sturdy, not flimsy like some other mats can be.
I ordered this to replace our grody old rubber bath mat and I really like it. It's big enough to cover almost the entire floor of the tub (other bath mats end up too short) and has a great non-slip surface. All the suction cups keep it in place but they aren't uncomfortable to stand or sit on. It's also really easy to clean and not hard to pull up and put back down when needed.
Great size and well made.Bought for my kids to use while taking a bath. Covers almost the entire floor of my standard sized tub which is great for the little rascals who refuse to stay on the limited space covered by a standard bath.
Works well and delivered promptly as promised. I would wish it were wider and covered even more shower floor surface.
Answer: Yes, it is not solid.  It's a nice color, but not fully opaque.