With classic style and modern features, Greenland Top is ready to carry everything you need for a day on the run. It has plenty of space for small items in its easily accessed pockets, while your laptop is stowed in its own sleeve in the main compartment. Just as practical for biking to work as for a weekend walk in the woods.G-1000 HeavyDuty Eco SThe S stand for smooth. It is slightly lighter and has a finer weave giving it a smoother surface. Made from recycled polyester and organic cotton.