Fast Track Bag 2.0 9L | Bags | Lululemon EU。The Lululemon 9L Fast Track Bag 2.0 in Khaki is a stylish and practical Medium-sized Sling Backpack designed for women. This rectangular-shaped bag features a solid exterior material made of durable nylon with a zip closure and adjustable nylon strap for added comfort. The exterior color of khaki adds a touch of sophistication, making it perfect for everyday use or outdoor activities. With a spacious interior and convenient pouch accessory, this Lululemon backpack combines fashion and functionality seamlessly.