Color: As shown in the First image. Quantity and size : As shown in the title or description.Backpack Rainproof Cover Outdoor Riding/hiking Waterproof Sports BagFeatures: Brand New and This Backpack Cover Uses a Large Area of Reflective Materials, Which Can Better Enhance the Reflective Brightness at NightThe Backpack is Made of Fluorescent-colored Fabric on Both Sides, Which Can Also Be Eye-catching For Daytime TravelThe Waterproof Process is Adopted at the Joint of Rainproof Cover, Which Can Effectively Avoid Rainwater Infiltration Features: Material: Ox For dColor: Red,BlackSize: S,M,L Package Included: 1 X Backpack Rainproof Cover.