G-1000 is Fjallraven's main material, created in 1968. It consists of 65% polyester and 35% cotton. It is hard-wearing and durable, and protects against wind and UV radiation. The G-1000 is tough, but the G-1000 Heavy Duty is even tougher. 
Tough, water-resistant, and impregnated with Greenland wax on both sides, it takes durability to a new level. Fjallraven's G-1000 Heavy Duty is less ventilated than G-1000, so we use it for products that prioritize durability over breathability, such as many of our bags and backpacks.