The Mechanic Series MJX2005 23L motorcycle riding backpack combines ventilated back support, organized riding storage and a magnetic quick-release chest buckle. Separate hydration and laptop sections, a Hypalon MOLLE panel and an external helmet carrier support commuting and adventure rides.Built around riding comfort and organization 23L capacity in a 32 x 20 x 45 cm format. 17 mm padded carrying system combines breathable mesh, soft foam and ventilation channels. Magnetic chest buckle releases by pulling the dedicated tab. Separate sections for a hydration bladder up to about 2.8L and a laptop up to about 14 inches. Independent pockets organize a phone, gloves, goggles, keys and small gear. Hypalon MOLLE panel and external buckle system support compatible accessories and helmet carry. Important magnetic-feature clarificationThe magnetic component is the chest-strap buckle. This backpack does not magnetically attach to a motorcycle tank or bodywork.Specifications and package Model: MJX2005BK Capacity: 23L Size: 32 x 20 x 45 cm Weight: approximately 1,609 g Included: one backpack and one rain cover Wet-weather useThe 350D Oxford outer fabric uses TPU and PU coatings for water resistance. Fit the included source-rated 6000 mm rain cover before heavy or prolonged rain. The backpack body itself is not described as fully waterproof.Frequently asked questionsDoes the backpack include a hydration bladder?No. It has a dedicated bladder compartment, but the bladder is sold separately.Will every 14-inch laptop fit?The compartment is intended for laptops up to approximately 14 inches, but device dimensions vary. Measure the laptop before ordering.