The Helios Thunder-crackle Full-Body Waded-Plush Adjustable and 3M Reflective Dog Jacket is Inner-lined with exclusively developed Blackshark Technology, this innovative fabric is Lightweight, Waterproof, Windproof, Snow proof, Breathable, Cold-Repellent, Impermeable and Tear Resistant. Meant to withstand the harshest weather conditions possible, whether you're caught in a Blizzard, Typhoon, Hurricane or Rainstorm this is the premiere premium plush protective Dog Jacket of it's kind. The Exterior shell is composed of a Plush-Wadded high Poly-Filled exterior that is Double-Waterproofed, Windproof, Breathable, Tear proof fabric and features surrounded 3M Reflective lining for emergency visibility. The interior features a thick layer of Extremely High-Quality warm-protective and thick Anti-Static fleece which is extremely breathable and offers a fantastic ventilation system. Perfect for High-Altitude Mountaineering or any extreme activities.