The classic ECWCS Parka in the new ACU camouflage pattern. Same style as your old "Gortex" but with updated features. Includes removable, zip-in micro fleece liner. Made of "H2O Proof"; a new 3-layer windproof, waterproof, and breathable nylon system guarantees you stay dry and comfortable. Durable, high performance material that will not lose effectiveness even after extended use or multiple washings. H20 Proof material has been tested by FITI Testing and Research Institute.