The lightweight, durable, and rugged GBC104 EVA Protective Case has a semi-rigid custom exterior with zipper closures and a reinforced handle. The rubberized EVA exterior offers protection from moisture, impact, dust, and other environmental factors, while the molded interior perfectly fits, stores, and protects its corresponding NOCO Boost X UltraSafe lithium jump starters— the GBX155 (sold separately).