Modifiers matching seat:

• soft,
• automotive,
• under,
• sliding,
• simple,
• special,
• larger,
• long,

Simple categories matching sliding:

• system,
• part,
• sport,
• portion,
• closure,
• surface,
• panel,
• board,
• contact,
• connection,
• control,
• door,
• component,
• seat,
• vehicle,
• equipment,
• tray,
• mechanism,
• device,
• means,