The term "Tasmanian Tiger T-Vent Tec 3L" refers to the fabric from the company "Tasmanian Tiger," which has the following composition: outer layer 92% Polyamide, 8% Elastane, inner layer 100% Polyamide, and the membrane is made of 100% Polyurethane. The material is robust, elastic, and resistant to wind and water. Tasmanian Tiger primarily uses it for high-quality hard-surface jackets. The ultra-thin impermeable membrane is extremely water-resistant while still offering excellent flexibility and breathability.