The Luna 3-in-1 Field Jacket consists of a 3-layer wool-blend shell and the Stella removable down-insulated liner, creating a modular layering system. Each piece can be worn independently or together, providing versatile protection across a wide range of temperatures and conditions.Please note: The Stella Liner Jacket is available separately in multiple color options. However, the standalone Stella Liner does not include the Lock-In Layering System and cannot be snapped into AETHER’s 3-in-1 styles.