100% Memory Foam Great option for travel trailer: If you like to travel and have a travel trailer, then this mattress topper is the perfect choice. You don’t need to spend a fortune for occasional use, this mattress topper will far exceeds your expectation and is super comfortable(memory foam can be cut to fit your travel trailer) Firm & supportive: it is firm and supportive but not hard, if you suffer from low back pain, we highly recommend this mattress topper.