Rubber pants or shorts.

[blackmacjay]

Try Weathervain in their rubber clothes offering.

http://www.weathervain.com/MACKINTOSHES.htm

Not cheap but I believe you will like them.

[Rives]

Excellent models too. Buttons fastened up properly by them and belts pulled tight

[luvcapes&macks]

catalystlatex , their bloomers with attached sheath , a specific request item , not in catalogue , but available in three thicknesses of latex , sensual in thinest wicked in thickest

[Johnnyrbr]

Just looked at this site - Wonderful stuff in there !!!

[Rubaray51]

Love wearing my zipped rubber pants in bed and wanking til I cum all over them. The joint smell of hot rubber and my spunk georgeous mmmmm

[MissRachel]

I love the smell of my warm, rubber maid uniform !

You people are driving me crazy with all this talk of rubber rain wear and rubber pants and wacking off.

[Sarah pvc]

I like the smell of my car when I leave one of my pvc macs in it, when the suns been on it, the smell is delightful.

[rubberdee]

Sealwear in Dorset do knee-length or shorter rubber bloomers in a variety of colours. I find the rubber is of very high quality and lasts indefinitely.

I can vouch for that as I have had a pair for getting on ten years now. Worn regularly and no sign of degradation.

[Deleted User 415]

There are quite a few.
First off check out Pvc-u-like’s selections for some.

If you are looking for something not carried there, besides those mentioned in this thread already, here is a small list to check out:

Simon O
The Latex Store (California, US)
Libidex
Invincible
Baroness (New York, US)
Yummy Gummy Latex
Mr S Leather ( for Neoprene)
Honour
Regulation
Syren
JT’s Stockroom
Fetish Factory
PurplePassion
LatexCatfish

[Sarah pvc]

Love wearing my zipped rubber pants in bed and wanking til I cum all over them. The joint smell of hot rubber and my spunk georgeous mmmmm

That does sound hot mmmm