A1: We recommend Labrador Retrievers to use our large dog car seats or dog hammocks. Julibee's offers three options for back seat dog seats for large dogs: premium, luxury, and fluff. All three options provide maximum comfort and softness. The fluff large dog car seat is lightweight and has a warmer and cozier fabric, although it is not removable for washing. The premium large dog car seat offers enhanced security and comes with a portable handle and Velcro for versatile use. The luxury large dog car seat provides more flexibility for the dog's movement without being limited by confined space. These three dog car seats are easy to use without requiring assembly, just buy and go. They weigh between 2.5-3.8 kg.