For me, that usually means business casual during the week, true casual, i.e., jeans on week-ends or shorts in the summer.  I wouldn't go ultra-casual, i.e. tee shirts or sweats, unless you already have seen the lady.  Just make sure whatever you wear is neat, and clean.  And do be sure to change into fresh socks and underwear before your appointment.

AKA don't stand out like a sore thumb walking thru the lobby or passing  housekeeping in the hall.  Business casual, jeans and shirt, suit, clean gym wear -

things a woman notices about a man, after whether or not he's wearing a ring.

Given all the time and effort that women put into their choice of shoes, it makes sense.

I like to wear a wet t-shirt... so my nipples show...

I'm hoping (praying) that one day, my lady friend will arrive wearing the same.

What the others said is correct – the main issue when traveling to an incall is to make sure you are inconspicuous.

That being said, for most of fall, winter, and spring, I wear a light weight, tight fitting cashmere sweater. All the ladies like hugging the cashmere and it gets things off on a good note.

and also the exotic boots and shoes, just because, though stylish ' these cause you to be noticed and possibly remembered.....

Most of my hobbying is done during the afternoon. I leave the office for a few hours and return later in the day. So I'm generally wearing an English or Italian suit, or a blazer and slacks, always a designer shirt and tie.

Clean and well groomed is more important.

And if you want to make a classy impression, a nice real leather or (subtle) exotic belt and matching or well coordinating shoes is a good way to go. I'm into lizard and snake skin myself for the belt and tassle loafers.....

Re: What to wear? does it matter guys how you look?

I've never liked the coming form the gym look, I always look worn out.  I just go for the clean casual look, sometimes corporate casual, some times blue jeans.  Just not to flashy, you don't want to draw attention.  Oh, clean underwear is a must! lol

I agree with LEGG LOVER

suit up if the hotel is ritzy but the trucker stop or the economy hotels keep inconspicuous. Remember its better FAR BETTER to be CLEAN than to be a FASHIONable person.

your the boss.. so to speak it should not matter your attire just your hygeine and... if you feel comfortable dress how you usually do.

if you notice you look out of place mention,
your overdressed or underdressed your sexy provider will undoubtedly assure you that she care more what under those clothes and how its going to make her feel GREAT!!