https://sport.woot.com/offers/cascade-mountain-tech-stadium-seat-17z-46?ref=w_ngh_mc_itm_is_1_tl 17" Cascade Mountain Tech Portable Folding Steel Stadium Seat (Navy, Purple) for $17.99 - 10% when you apply code SAVE10 at checkout = $16.19 . Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is $6 per order.