Lululemon Knit Nylon Micro Backpack 4L Adjustable Strap 。Brand new Lets keep it simple. This sleek, micro backpack has cushiony, water-repellent fabric and keeps things organized, even when you don\'t need to haul around a bunch of stuff. Designed for Casual Water-Repellent, Knit Nylon Fabric Water-repellent Measurements Dimensions: 23.5cm x 7.5cm x 18cm (9.3\" x 3\" x 7.1\") Volume: 4L Product Features Adjustable straps Exterior zippered pocket to secure your valuables Zippered main compartment Two-way zipper Zippered interior pocket Materials Body: 85% Nylon, 15% Elastane Lining: 100% Recycled Polyester.