T1 Ranger Hatch & Accessories

What are the options mean?

When T1 was released, the white is a normal density foam but lighter, gray is a high dense foam but 50gram heavier.

Everyone bought the gray version, which means the high dense foam is more popular.

So in the listing,
Grey - means the high dense foam version
White lightweight - means the white light weight version
White new dense - means white but high dense form version