Rambo Optimo Interchangeable Liners - Made just for the Rambo Optimo Keep your horse warm and allow him to still move freely in his Rambo Optimo. This breathable liner quickly and easily attaches to selected Rambo Optimo Turnout. The Rambo Optimo Liner is available in 100g, 200g, 300g and 400g of thermobonded fiberfill. All you need are these liners to convert your Rambo Optimo into 5 different blankets (lite - no fill, 100g, 200g, 300g, or 400g blanket). How It Works: The Rambo Optimo Liner utilizes Velcro and snap closures to allow you to attach the liner to the outer shell without extra bulky straps. The inner liner and outer shell operate as one unit. No more shifted and disheveled under blankets. The Optimo Liner also offers the same Rambo split technology of the outer shell so you don"t have to sacrifice free movement for warmth. The Rambo Optimo Liner is available in Black with Black Trim.