SIZE - Measures 8 inches wide, 10 inches high and 4 inches deep with 32 inch backpack straps and an additional 34 inch adjustable and removeable strap PERFORMANCE TWILL - This weather-friendly fabric is lightweight and durable for everyday use, and includes 2 inch heritage quilting DETAILS - Exterior features two side pockets and a back slip pocket; interior features a zip pocket; zip closure CARE - Spot clean with mild detergent and a soft, damp cloth, rinse thoroughly; lay flat to dry