I am not a big fan of bootcut jeans, but they seemed to be the trend last year, so I had bought a pair for summer. I chose Faded Glory, a brand I often buy and am generally pleased with, stretch, tall, white color. They have this below-waist waistline, of course - for some reason it is so crazily popular these days that you can no longer find a pair with a normal waistline. I have learned to accept it, I guess, if it's not over the top low; this one is okay. The fabric is 98% cotton and 2% spandex for stretching.
I wore these jeans throughout summer and fall. They fit me well, my husband has repeatedly mentioned how nice they sit on me, so I've got a second-party confirmation on that. :) As to bootcut, I grew to appreciate it when the weather cooled off and I switched from shoes to boots. Now, with boots, those wide flares do make sense!
According to care instructions, these jeans are to be washed in cold water and dried in low temperature, but I have used warm water and higher temperature several times, and the jeans are just fine, no shrinking or any other damage.