Marium & Mizuno

Hey guys, Wondering if anyone has tried Marium or Mizumo swimming briefs? Saw a hot post on Twitter and found a site selling them. Slightly hesitant buying as there is no real description of the material. Not keen on polyester trunks like Speedo as they just feel too rough to touch. https://www.marium.com.tw/categories/racing-swim-briefs?limit=72 Appreciate any recommendations or thoughts.