1. Material: nylon, PVC
2. Capacity:
- Small: 1 camera 1 lens
- Medium: 1 camera 2 lenses
- Large: 1 camera 3 lenses + flat compartment
3. External size:
- Small: about 27 x 15 x 12cm
- Medium: about 32 x 19.5 x 13cm
- Large: about 38 x 20.5 x 14cm
4. Internal size:
- Small: about 25 x 13 x 10cm
- Medium: about 30 x 17.5 x 10cm
- Large: about 34 x 19 x 11.5cm
5. Weight:
- Small: about 352g
- Medium: about 516g
- Large: about 670g
6. Note: only the bag, does not include the camera and other items in the picture

Features:
1. Partitioned storage, for the lens cap, keys, batteries, accessories, etc. categorized storage, quick access
2. Built-in key rope, you can hang your keys on the hook and loop in case you lose them
3. Elastic mesh pockets, easy to place all kinds of camera accessories and other items in the partition
4. Built-in removable dividers, free to install and adjust at will
5. Triangular ear design, making the backpack more comfortable to carry.
6. Waterproof fabric, anti-scratch and wear-resistant
7. Multiple ways to switch at will, can be shoulder/leaning/carrying
8. Tripod can be tied at the bottom, and the webbing clip can store extra straps (small size does not have this function)