Cov txheej txheem txhawb nqa tseem ceeb siv ib leeg, tsis yog -segmented kov. Tus naj npawb ntawm tav ncaj qha cuam tshuam rau cua tsis kam. Lub 16-rib qauv tsim nyog rau kev siv txhua hnub, thaum lub kaus 24-rib, nrog nws cov rib me me sib nrug los ua ib qho kev txhawb nqa ntom ntom, tuaj yeem muaj qhov ntev ntawm 120 cm. Hais txog cov khoom siv hauv nruab nrab, hlau nyiaj rau 58% ntawm kev lag luam sib koom, thaum cov khoom siv carbon fiber ntau yog 3.7 npaug kim dua.
Lub canopy siv high -density pongee npuag, nrog lub hnub- tiv thaiv txheej nrog rau cov xim dub thiab nyiaj. Commercial custom models often use 210T density fabric, which has a tear strength exceeding 450N and can withstand 10-level gusts. Rib ua ke suav nrog tag nrho -steel thiab steel-aluminium hybrid tav.