The lightest and longest lasting hoses are those that use a Teflon or PVC inner liner, like the ones that are used in the "high pressure" line of the power steering system on the Toyota Camry. They last for years, because the Teflon or PVC is the material used in high pressure hoses.
But there is another type of hose that can be used in a power steering system, and it is made of a rubber/elastomer material. This is called an "all rubber" hose. The problem with an all rubber hose is that it does not have the same longevity as a hose made from Teflon or PVC.
The rubber/elastomer hose is more likely to deteriorate in cold weather. When I was looking for a hose to replace the one that had been leaking, I looked at the all rubber hoses. I noticed that they were a little thicker than the hose made from Teflon or PVC.