Double-layer expansion large capacity long and short-distance portable bag with wheels dry and wet separation fitness bag can be covered with tie rod

Lining texture: Polyester Function: breathable, wear-resistant, expansion, load reduction, storage, wet and dry separation, other Material: Oxford cloth Popular elements: contrasting colors, others Capacity: 20-35L Size: uniform size Length: 40 cm Width: 30 cm Height: 21 cm