With this softbox from Elinchrom you don't have to worry about bad lighting when you're taking pictures. It weighs 0.9 kg, so it's easy to carry around when you're taking pictures.
From Amazon
Elinchrom D-LITE RX ONE/ONE SOFTBOX TO GO KIT (EL20847.2), Black
Clifton Cameras
Elinchrom D-Lite RX ONE/ONE Softbox To Go Set