The Marmot Women's Dena Jacket may be the last jacket you'll ever need. The Dena keeps you warm as a standalone jacket on chilly days or under a shell when the weather really decides to get nasty. It's perfectly at-home just kicking around town, but this jacket also loves to go skiing. The Dena even gets the nod from good ol' Planet Earth for its Thermal Eco R insulation, which is derived from recycled materials.