Very breathable nylon mesh with and a pleasant touch, soft on the inside. Includes a locking loop with a secure lock. Does not add excessive bulk to the device while still providing full protection. Material is very light and very resistant at the same time. Provides effective protection for all angles of the device, guarding against scratches and bumps. Internal dimensions: 19.0 cm x 9.0 cm x 1.5 cm Use scenario: Ideal for carrying a phone or small device in a bag, backpack, or travel pouch, protecting it from scratches and minor impacts. Use scenario: Suitable for travel or commuting, ensuring the device remains protected during transit and handling. Use scenario: Practical for outdoor work or gym environments, offering portable protection for devices that fit within the internal dimensions. Compatibility guidance: Suitable for devices up to 19.0 cm in length, 9.0 cm in width, and 1.5 cm in thickness.