31. Optional backrests can make paddling more comfortable. 32. It came without hubcaps, bumpers or a backrest for passengers in the back seat. 33. The backrest slides into one of the six slots at the rear of the seat. 34. Or pull up a log, equipped with backrests , designed by the Dutch firm Droog. 35. Same for the rear seats, which are also power-operated with adjustable backrest angles. 36. Recaro seats have a higher than normal backrest which provides optimum support for the entire back. 37. The F6B Deluxe does, however, come with a small passenger backrest as standard equipment. 38. The rubber mounts were pliable, allowing the backrest to flex and move with the sitter. 39. The passenger backrest has arm rests. 40. A basic transfer bench typically consists of a backrest , long seat, and four legs.