I am racing Celtman in June, I need waterproof pants and a hooded jacket.
Any recommendations? They will be checking the gear so it must be waterproof.
Anyone with any experience in waterproof clothing?
Sounds like the requirements for a Fell kit in the UK. Maybe the fellrunner.org.uk forum has some tips. Check the threads under equipment: http://forum.fellrunner.org.uk/
There are some rules about fell running kit in the UK assuming that’s what they mean - and will be on the FRA website.
Full length sleeves, an integral hood and taped seams for the jacket ring a bell.
But best check with the organisers to make sure.
Scotland doesn’t have the worlds best weather so I wouldn’t skimp on clothing 
LG
This is from the Fell Runners Association website - which may or may not be what the organisers mean -
The core standard is for WATERPROOF (i.e. not merely windproof) whole body cover. The FRA view of “whole body cover” is an outer layer for the torso with an attached hood (which cannot be lost, blow away or be left behind). For the legs, the outer waterproof layer should reach the ankles; just below the knee layers are not adequate. A hat and gloves must also be carried.
Although waterproof whole body cover is the core standard, organisers are allowed a degree of flexibility for Short A, Medium/Short B and all category C races which take place in settled, fine weather. In such circumstances, organisers may use their judgement to relax the kit requirements.
The FRA regards “waterproof” to be a garment marketed as “waterproof” (i.e. not just “windproof”) with taped seams. Such garments require maintaining (i.e. cleaning and reproofing) to maintain their waterproof quality.
My understanding is that on the tougher Fell courses, you don’t have to wear the stuff, but you have to have it with you in case bad weather comes and/or you get lost. So the kit includes the water proof clothes, a whistle, some food, water, etc. The xTreme triathlons seem to have adopted this requirement. It would be great if some Brits would come on here and suggest the best gear that meets those requirements.
You are going to have an incredible experience in Scotland.
Try to find a light weight jacket, a gore-tex shell or similar.
You will be tired and if the weather is rough you will need to stay warm.
I used a thin wool sweater under a gore-tex jacket on the last part of Norseman. I needed to stay warm since I was so tired and the weather had been interesting. But, buy something you can use after Celtman also. Remember good gloves. On the bike neoprene gloves saved me.
I will also recommend having wool socks if it is cold weather on the bike.
Have fun, you are almost there.
You are going to have an incredible experience in Scotland.
Try to find a light weight jacket, a gore-tex shell or similar.
You will be tired and if the weather is rough you will need to stay warm.
I used a thin wool sweater under a gore-tex jacket on the last part of Norseman. I needed to stay warm since I was so tired and the weather had been interesting. But, buy something you can use after Celtman also. Remember good gloves. On the bike neoprene gloves saved me.
I will also recommend having wool socks if it is cold weather on the bike.
Have fun, you are almost there.
Any specific brands anyone would recommend? I have a ton of run/bike kit, great gloves, great cold weather gear but no pants and only water-resistant tops.
I used my regular shell gore-tex jacket. The same I use when I go alpine skiing or hiking. I am not even sure about the brand.
I did not go for running specific since I knew that I would not run the last part anyway. Also I had used enough money on gear so I could reuse a jacket.
For pants, you can find some light rain gear pants. Helly Hansen has it for sure.
Jacket, go with any good brand. It it is gore-tex you cannot go wrong, but it does not have to be as long as it is water proof.
I have used my Norrona hooded jacket for long runs in a few downpours and snow storms with good results- waterproof, lightweight and small pocket. Their stuff is a bit pricey but I have had the jacket for years now. The hood can be cinched and has a small brim which I like, it keeps my glasses a little less wet. Good luck
I live in Scotland and personally like the Inov8 range of clothing. Lightweight, waterproof good and enough for the kit inspections. I have marshalled on the Celtman cause and the weather can be extreme, one year we had rain, sleet and snow on the peaks and calm weather in the valleys.
Highly recommend OMM, plus as mentioned inov8. Both will be adequate in extreme conditions (but I’m sure it’ll be dry & windless, so they’ll never leave your bag :-))