[foreign trade export edition] cool black [foreign trade export version] fresh blue [foreign trade export edition] dynamic yellow [ordinary style] cool black [ordinary style] fresh blue [ordinary style] dynamic yellow

thickened 35 l single cover-with buckle thickened 35 l single cover-with buckle + waterproof bag thickened 35 l single cover-with buckle + thermal bag thickened 35 l single cover-with buckle + waterproof + insulation thickened 40 l double cover-with buckle thickened 40 l double cover-with buckle + waterproof bag thickened 40 l double cover-with buckle + thermal bag thickened 40 l double cover-with buckle + waterproof + insulation thickened 60 l single cover-with buckle thickened 60 l single cover-with buckle + waterproof bag thickened 60 l single cover-with buckle + thermal bag thickened 60 l single cover-with buckle + waterproof + insulation thickened 75 liters three covers-with buckle thickened 75 liters three covers-with buckle + waterproof bag thickened 75 liters three covers-with buckle + thermal bag thickened 75 liters three covers-with buckle + waterproof + insulation