Color: Blue Yellow Pink Grey

Size: small， medium， large
Trumpet: Backpack rear panel 24 cm long， 19.5 cm long before the film，
Bust adjustment range: 32 cm -42 cm;
Strap width 3 cm， strap adjusting the length of 68-108 cm.
Rubber bands and dog buckle adjustable length: 14 cm -20 cm.
Medium: Backpack rear panel 27 centimeters long， 21.5 centimeters long before the film，
Bust adjustment range: 37 cm -48 cm;
Strap width 3 cm， strap adjusting the length of 68-108 cm.
Rubber bands and dog buckle adjustable length: 14 cm -20 cm.
  Queen: Backpack rear panel 31 cm long， 22.5 cm long before the film，
Bust adjustment range: 47 cm -57 cm;
Strap width 3 cm， strap adjusting the length of 68-108 cm.
Rubber bands and dog buckle adjustable length: 14 cm -20 cm