My daughter wears a raincoat made from lightweight laminate cotton… I lined it with cotton velour and it washes very well in with the regular kids’ laundry. I have dried it hanging and have never had an issue. Fabric.com shipped it on a roll, which made it super-easy as it had no creases.
For my son, I made laminate cotton as he turned up his nose at everything available; quilting cotton + iron-on vinyl + flannel lining = raincoat we can both live with. It is definitely less flexible/stiffer than the ready-made laminate tho.
ready-made laminate new: (a try-on for button placement): https://sphotos-a.xx.fbcdn.net/hphotos-frc1/402139_2769586391295_1555956899_n.jpg
home-made laminate new:
https://sphotos-b.xx.fbcdn.net/hphotos-prn1/559511_4239872747535_1812975358_n.jpg
can’t find a good pic of it recently, but it’s been a year and a half (7 months for the orange) and still looks good.