TENBA TRIANGULAR STAND BAG
Uses Protek [TM] Ballistic Nylon for the outer shell, Air Channel plastic for stiffness on the three sides, Plywood on each end, and inside closed cell cross-linked foam inside to absorb shock and protect your gear.
They have a full opening zipper, straps to tie down the tripod or light stands, and a Pack Cloth Nylon panel to protect umbrellas from the metal stands.
There is a leather handgrip, end haul straps, and 6 D rings to attach a padded shoulder strap. They are air shipable.