... . in 1680D waterproof Nylon suitable for camp multi-functional nylon solar backpack1)for charging MP3, MP4, mobile phone, laptop etc ... digital camera,electronic dictionary,ect.3.high quality design,the solar panel should give more than 20 years service.4. ... leather etc.(provide your choice) Specification 1,We are profesional solar bags factory .2,Good quality ,and supply stable.competitive price Packing ...