Wuhapininn الرجال حقيبة ظهر فارس الرجال دراجة نارية خوذة القاطرة حقيبة مضادة للماء موتو حقيبة الظهر الكمبيوتر المحمول 15.6 بوصة ركوب الدراجات

Design of an air-flow back padding system and a secret pocket ensures great comfort and safety in your journey.
Oxford spun film technology, 5 times waterproof t, 2 times abrasion resistance
Safety reflective strip design night reflective warning to ensure night travel, it will emit a strong light when illuminated by lights in a dim environment to warn passing vehicles to avoid giving way
Adjustable shoulder strap: The bag can be designed with an adjustable shoulder strap for easy adjustment according to your needs
Two-way slider: The backpack's two-way slider design can be pulled together left and right, smoothly, without jamming