1. Weight: 0.827 pounds (approximately 375 grams), lightweight design, suitable for daily commuting or short distance travel. 2. Size: 11.4 x 6.9 x 3.3 inches (approximately 29 x 17.5 x 8.4 cm), a small to medium-sized backpack that balances portability and basic storage needs. 3. Target audience: Adults who are suitable for both men and women, with a neutral design style, suitable for daily use by users of different genders. 3. Color selection: Available in three colors: black, orange, and khaki. Black is a classic and versatile color, while orange and khaki add vitality or natural texture. 4. Material and Durability: Made of wrinkled nylon fabric, specially treated to have anti splash properties, the fabric is soft and firm, not easily deformed after folding, light in weight, and stable in load-bearing capacity.