Water Resistant & Dual Zippers --- The bike top tube bag is made of stylish and wear-resistant carbon fiber material with sealed double zippers closure, which ensures the water doesn?t flow into the bag and can perfectly protect the phone in rainy days and extreme environments. Large Space For Storage --- The bike bag has enough inside room for long rides, holds a lot of stuff like cellphone, charger, power bank, USB cable, keys, wallet, CO2 inflator, repair kits. Perfect compatible with cellphones up to 6.5 inches, such as iPhone XR XS MAX X 8 7 6s 6 plus 5s. Sensitive Touch Screen --- The bike handlebar bag with a highly sensitive TPU display window?makes it easy to?use the cellphone?while riding, a great way to see the driving path while using maps on a ride. Sun Visor & Reflective Strap --- Sun visor on the bicycle cellphone bag top helps watch phone screen clearly, which is great for sunny or rainy day. Reflective tape on both sides of handlebar bag can increase night cycling visibility to keep night ride safe and avoid accident. Easy To Install --- Easy to attach to the handlebar bag with the strong hook and loop fastener, which are firm enough to hold up on the bike. The bike bag would not move around even if you ride on a rough road.