Rain suit recommendations

If you're looking for rain gear that is designed for slumming it in super wet conditions,  but also requires the ability to scoot around on the ground without tearing, you need to Googles, 'Class 3 Rainwear'. Unfortunately, even though Class 3 can hold up to full romping in the field, it also always comes in full visibility because... OSHA...

Truly indestructible, price is no option, maintenance OK...Filson Tin Cloth.  Worth the price?  Only if it is the last jacket (or bibs) you ever buy.

Alternatives are boundless but I personally wear a "vintage" Smith and Wesson waxed cotton field coat with hood.  Used on Ebay about $50.  I have worn it with layering in 8 f weather with 2" hour of snowfall and a 20 knot wind in Poland.  It is finally falling apart but that is due to EXTREME abuse/use at my hands and being used when I got it.

Edit:  A less expensive but almost as good alternative is to use Carhartt/Dicckies/CAT/etc 100% cotton duck jacket and use the Filson or similar wax to make your own waxed cotton.  The problem usually is the lack of storm flap for the zippers and pockets, etc.

Waxed cotton does require maintenance but it is about 95% as waterproof as gortex and being cotton does not melt if you brush up against a hot exhaust manifold.  It only breathes about 50% as well but I always wear a very cheap base layer for wicking.

Very valid point.  That S&W field coat cleaned up well even after doing an all night engine swap lying in what seemed like a river at Road America.  Oddly, I cannot banish the smell of wet dog from it after Wally slept on it the entire ride back to Indiana.

It is musk that the ladies find irresistible.  It lets them know their man (or domestic partner of indeterminate sexuality) is virile and strong.

At least that is what I tell myself.

In a pinch improvise
If it's good enough for Mitt....

I have a Grundens Workwear jacket.  It is heavy polyester canvas shell, goretex, breaths, is outrageously waterproof, has the coolest array of pockets, and it has the only hood that I've ever had that really keeps the rain off my glasses.  Every detail of this jacket is perfect.  I got it at Englund Marine in Astoria, OR which is a shop that caters to the local professional sea-going folk like fishermen and the like.  I got it the year before the drought started and I fear that nature basically gave up on trying to get me wet and decided that raining on California was a waste of time. Sorry folks.  My bad.

You can't get better, and all this talk of tin cloth... sure if you want the state of the art rain gear from the 1800s.  If you want what the pros use, Grundens.

That's a great picture...

Why isn't the beer cooler inside? I would think it would get priority over everything, including certain team members.

The main reason to pick wax cotton/oil cloth over anything else I have looked at is it does not melt.  Grundens may offer the same but I have not seen any of their stuff that does. 

If this is not a concern, just about anything decent quality will equal tin cloth for waterproofness and many will beat it.  Get into sailing stuff and I am sure it will obliterate 1800's waterproofing technology.  Since the bulk of a rain jacket means inadvertently touching lots of surfaces you did not plan on, this is important to me.  Similar reason why I have had to replace more than one pair of PVC rain pants when I rode motorcycles...that less than 1 second brush against the exhaust as you get off the bike.