SE's mohair sweaters is loved because they look very feminine and photogenic, but many girls also stay away from them due to itch.
Compared to similiar mohair sweaters, the brand's mohair fabric is pretty good. If you find the composition is 34% kid mohair, 34% wool, 27% polyamide (recycled), 5% elastane (recycled), it tells the yarn is Velour from Topline which is a member of Consinee Group (Topline previously belonged to Italy Lineapin Group) , price is approximately $60 USD/KG. This mohair yarn is soft, glossy, with good elasticity.
It's unavoidable that mohair is itchy, you are suggested to use wool conditioner and wear undershirt.
PS: There is other mohair yarn soft and not itchy, like super kid mohair, silk and mohair blended yarn. But those sweater may break your bank.