Iyi braa inoshanda yakapetwa kaviri elastic layer dhizaini, ichibvumira kuti itambanuke zvakasununguka zvinoenderana nekufamba kwemuviri.
Iyo dhizaini inosanganisa sublimation kudhinda uye inosiyanisa mavara mabhuroko, ichipa iyo yemitambo asi ine fashoni kutaridzika.
Chiratidzo chemhando yepamusoro chekupisa pachipfuva chepamberi chakatsetseka uye chakapfava kubata.