Very breathable nylon mesh construction with and a pleasant touch; soft on the inside. Includes a locking loop. Lightweight yet durable design that minimizes bulk while keeping the device fully protected. Effective protection from all angles, guarding against scratches and bumps. Internal dimensions: 19.0 cm x 9.0 cm x 1.5 cm. Compatibility and fit: designed to accommodate devices within the internal measures of 19.0 cm (length) x 9.0 cm (width) x 1.5 cm (depth). Use scenarios: Daily commute and travel: place the device in the sleeve for protection in bags, backpacks, or purses. Outdoor activities and gym: lightweight protection during workouts or outdoor errands, with easy access via the locking loop. Office or home use: keeps the device safe on a desk or in a bag, with secure closure when on the move.