You can hook to hang a riding lamp in front of the backpack. (package not including riding lamp) Night riding is safer with suspension of riding lamps. There are reflective strips on the bag so it is also safe without riding lamp. The outer pocket for phone is convenient to get items when riding H2O exit for drinking tube and leading of the drinking tube on the strap make it easy to drink water while cycling. (no water bladder included) Riding a bike never stop. Light cycling outdoor biking backpack Almost feel no sense of weight convenient and comfortable Small figure great effect: samll sports bicycling backpack carry a days supplies to release your hands. Made of tear resistant nylon fabric it can protect your items when you encounter a drizzle.(The zipper will penetrate water if exposed to rain for a long time) High quality nylon fabric wear-resistant and tear-resistant. Good quality smooth zipper. Easy to zip open and closed. High quality adjustable buckles adjustable belt length to perfect fit your body riding process does not shake to make safety for riding. Waterproof material Wear-resisting Zipper Buckle The backpack fits body perfectly and does not shake when riding. This bike bag is not only practical but also slim line and most importantly lightweight which does not add any extra burden to your journey so that you will have a relaxed outdoor experience. MATERIAL: It has been proved that outdoor recreations are best equipped with a 2l hydration bladder which will not add burden to exercise but supply enough water for 6 hours outdoor exercise. LACALLION water bladder is made of BPA free food grade materials tear and high temperature resistance designed to be leak proof with self-seal technology. It holds a half gallon of water or your favorite sport drink. Nontoxic TASTE-FREE and BPA-FREE interior keeps your drink safety and healthy. DESIGN: Its large opening allows quick filling cleaning and drying. Easy to disassemble pipe easy to replace and store it. No leakage. Strong pressure bearing capacity with seaming technology so you do not worry about water bladder pressure blasting. Capacity: 2L. Tube straw length: 40inch. The empty bladder weight is 4oz. DRINK COMFORTABLY WHILE EXERCISING: When you re out doing a run or cycling getting a drink can be an ordeal. LACALLION water bladder makes getting a refreshing drink on the go easy. Open the dust-proof lid of the tube gently bite the straw to suck water and then be handsfree. The simple to use tube straw allows for getting cool replenishing water easy without having to take your eyes off the road to reach for a bottle. The straw has secure closing mechanism to prevent leaks. APPLICATIONS: This water bladder is the ideal solution for staying cooler when youre running cycling hiking climbing hunting or backpacking or any activity you need your hands free. It is perfect for snowboarding hiking running cycling skating trekking camping jogging climbing and so on. Note: Do not fill boiling water alcohol carbonated drinks etc. Your satisfaction is guaranteed