Your post is kind of pointless, as suits and shirts could be made of basically anything.

By "the material used for suits" you could be talking about wool, linen, twill cotton, polyester, silk, flannel, etc etc etc... Shirts can also be made of any of these materials.

What you are seeing and responding to may just be the weight and texture of the fabric. ie, maybe you saw a linen suit with a flannel or twill cotton shirt under it.

As for where to buy a suit online: don't. Don't buy a suit online. The fit is too important. Get your measurements taken and get a suit tailored to fit properly. It will save you a lot of hassle. And if you can at all afford it, don't buy a cheap suit. I'm not saying you need to drop $5000 for something bespoke on Savile Row. But you shouldn't be scrimping with a suit. Spend at the upper limit of what you can afford because you will look noticeably better and save money in the long run.

>>607

Basically what he said. I just want to add that as a general rule it's easier to take material away from a suit than to add material to it. Obviously I'm not saying get one three sizes too big, but if you have to choose between adding an inch and taking away an inch, always go for the bigger one. Tailoring a suit is relatively cheap, getting measured up can be free depending on where you are and how well you can convince a tailor that you will come back to him if he measures you up for free.