I refrained on commenting about Premiers customer service and attitude towards us. Let's just say don't bother it'll only agravate you.
That has not been my experience.
I had a problem with a kite, they sent me another and a mailing label to return the original at their expense.
I've found them helpful.
Actual info on what the exact length and type of material is at their end.
I've had a Yakkao and they have a mix of materials on it, including braided flexy fiberglass.
Funny kite that likes to dance.