Olympia Chimney Supply’s Hybrid chimney-liner system is a smooth-walled liner with an inner wall that does not cup and feather as standard smooth-walled liners do, eliminating problems associated with restricted venting. The Hybrid is stronger than standard chimney liners, without the weight of heavy flex liners. It has no memory and is easy to straighten. The Hybrid is more flexible than any other liner and can be ovalized and coiled for easy handling and cost-effective shipping.