LARGE CAPACITY: This bicycle trunk bag comes with one main compartment,two extensible side pockets and one water bottle pocket in the back.The two side panniers and expanded top offer additional storage space to stock anything you want be with you in your long trips.Plenty of room for storing your bike pump,tools,patch kit,spare tubes,lock,chain,a change of clothes, groceries and a few other necessities.

HUMANIZED DESIGN: The divider thingy for the main compartment of pannier bag keep your camera or phones separate from other sharp items like keys or bike tools.You can move these interior pieces around to subdivide the interior of the bag as you need. What's more,the main compartment is padded all around to make your belongings well protected.

EASY TO INSTALL: With straps quick release design, 2 in front attached around seat post and 2 underneath attach around your bike rack.It can be easily and security mount on all types of bikes. There is a bungee cords on the top of trunk bag which can be easily put in or take out your items like a rain jacket,gloves, umbrella, repair items, tripod etc.

MULTI-PURPOSE DESIGN：This rear carrier bag comes with an adjustable padded shoulder strap,you can carry this shoulder bag everywhere with you, perfect for outdoor hiking,picnic with friends or weekend outings or commuting to work or school. A wonderful gift for a dear friend or a beloved family member.

TRIPLE SECURITY PROTECTION: Reflective straps on both side panniers to ensure your safety in the dark.The taillight hanger strap allow you hang a rear light on the back to enhance your visibility at night or in low light situations.The bonus fluorescent green rainproof cover also helps others quickly find you when you are riding in rainy or humid conditions.