About backpack and water bag, rain cover

This product is backpack, water bag and rain cover are accessories. Backpacks don't contain water bag and rain cover.

If you only need a backpack, please buy the 'bag only' option.
If you need a backpack and water bag, please buy the 'bag and water' option.
If you need a backpack and rain cover, please buy the 'bag and cover' option.
If you need a backpack and water bag and rain cover, please buy the 'bag set' option.

Introduction of optional accessories water bag