Textile Products Importers, Czechia Import Companies

I am looking for fabric - especially production specific material - primary cashmere with viscose or elastan or lycra - I need some elastic light fabric suitable on sewing underwear - structure more than 30 percent cashmere. Could you help to me

We would need elastic fabrics suitable for fitness leggings, bras, sports t-shirts and another functional sports things. - something like 80% polyester 20% elastan, 80% polyamid, 20% elastan ….