This Topeak Dynawedge saddlebag is an aerodynamic bag that easily attaches under the saddle using the straps. Made of durable polyester, it's water-repellent to keep your belongings dry. It offers ample space for a tube, mini tools, or other bike tools. The saddlebag is easy to open and close with a zipper that runs across the bag, providing easy access to your gear. Product specifications - Color specific: Black - Brand: Topeak - Primary base color: Black - Type: DynaWedge - Weatherproof: Water repellent - Raincover included: No - Width in cm: 12 - Height in cm: 7.5 - Bag material: Polyester - Bag-basket attachment system: Velcro - Depth: 4 - Volume in liters: 0.35 - Accessory attachment system: Velcro - Molded construction is lightweight, water repellent, and aerodynamic - Suitable for inner tubes, tools, and other small repair items - Mounts easily to saddle rails with adhesive straps and seatpost with rubber strap