Solstice Quest Inflatable Seat Solstice Quest Inflatable Seat Solstice Quest Inflatable Seat Expand Seating Capacity of Inflatable Boat Replacement Seat for Solstice Quest Inflatable Boats: (see SKU:SOTQB) Two Sizes: Medium 15" (38 cm) Fits 9' (274.3 cm) Boats Large 17" (43.2 cm) Fits 11' (335.3 cm) Boat