Amazon.co.jp: Stretch Sofa Seat Cover, Protective Cover, Elastic Material, Waterproof, Sofa Cover, Sofa Cover, For Living Room, 19.7 x 23.6 inches (50 x 60 cm), Bedroom, Sofa Seat Cover, 3 Seater, Solid
Amazon.co.jp: Sofa Seat Cover, Blue B, 3 Seater, Sofa Fit Cover, Leaf, Vertical and Horizontal Elasticity, Stretch, Fit Type, Non-Slip, Soft, Stretchy Material, Excellent Stretch, Suitable for All Seasons, 65.0 x 81.0
Amazon.co.jp: Stretch Sofa Seat Cover, Velour, 21.7 x 37.4 inches (55 x 95 cm), Seat Cover, Dark Gray, 1 Piece, 2 Pieces, Shaggy, Machine Washable, For Sofa Cover, Waterproof, Soft Sofa Seat