MATERIAL - water resistant nylon material, no afriad of small raining day while outdoor activities.
BACK - Padded back, soft and breathable, the air ventilation makes backpack more comfortable.
BUCKLE - Adjustable shoulder strap and chest/ waist buckle to fix the backpack more well. Whistle design allow user to call for helpl when meet any dangerous.
STORAGE - Except the water bladder, still have roomy for stuff storage.
REFLECTIVE STRIP - With reflective strip to keep user's safety at night.
