I saw them at the Royal....very well planned and they look like they would carry alot. Other than that booth, which was run by GPA direct, or GPA I do not know where one could be located. I expect we will start seeing more GPA stuff soon at tack stores since GPA had a larger presence at the Royal. Ask any tackstore carring the GPA hats if they will look into getting more GPA stuff. The jackets (designed for the jumper ring) were cool, moved with the body with elbows that are designed to stay in place but pretty pricey. Some had buttons and some had zips.
....you will find GPA accessories such as GPA backpacks, GPA boot bags, GPA hat bags, etc. at a great UK online equestrian shopping site named Amira Equi. The web address is as follows: https://www.amirashop.co.uk/index.html and the pricing is incredible! I have been a fan of this shop for some time now, for instance the Pikeur show coats are priced at approximately $160.00 up to about $250.00 which is a lot less than here in the states and the GPA helmets are always 1/2 price. The customer service is great and the shipping is quite reasonable for overseas rates!
I saw these in Dover too - somehow I just can't see myself using one, but I have a feeling it'll be like how I thought I never needed an iPhone. Once I see other people with them, I'll suddenly realize how cool they are. And then I'll get one and wonder what the heck I ever did without it. And then a horse will run over it... no no, we won't go there.
I had one for a while and just a heads up that they aren't waterproof. Not sure if the company claimed they were or not but mine got soaked inside and out from a light drizzle at a show. It also didn't hold up very well for the pice...maybe I just got a bad one but they're expensive for the quality IMO.
I would highly suggest a North Face Recon bag instead. Very waterproof and even have the exterior net that will fit your riding helmet (designed for a bike helmet but works great for my GPA). Plus they last forever! Mine is going on 6 years old and looks brand new besides constant/daily abuse at school, horse shows and traveling. http://www.thenorthface.com/catalog/...r/recon_3.html