Yes, that's the first thing I've noticed when browsing the websites for pics of pyrs (gotta get my Pyr fix, sometime.lol)
Blizzard is my 5 yr female and I think it all depends on certain things.
Like climate. I noticed other Pyrs who are kept mostly outside, like guard dogs, to have a thicker, more dense undercoat. It then makes the top coat look fuller. Indoor pet Pyrs, if brushed often (wich I know we all do. No one wants white tufts tumbleweed floating down the hallway in the morning.) normally have a thinner, less poofy coat. I think it's due to climate controle. Of course the Pyrs on farms, in the summer, blow huge hunks of coat that can be peeled off and then their coat looks thinner then the indoor pyr's coat.
Males have a heavery coat then females around the neck area, also
But feel of coats? I think that all depends on genetics. I've actually met one female Pyr with wavey hair! I'd never seen that before!
Blizzard's hair, I'd like to think, is average for a Pyr. It's straight, with more around the pant and writhers, and neck. The only cotteny/silker area she has is around the ears. I like to clip that part off, however, so she has more circulation , airwise. Just as a practice to help prevent ear infections (along with cleaning the ears, often). Her top coat feels smooth, but corse. It's very water resistant and takes allot to get her drenched enough for a bath. The second layer of fur is softer, more dense. She gets groomed, once a week for about an hour, but only bathed once a month. Her hair is easy to clean by just brushing out the dirt. It dosn't cling at all. The bath is more for getting rid of the doggy oder. hehehe
Umm anyway...
I think it just all depends on two things... genetics and invirment. I honestly think invirment has the most impact, however.