Water Resistant: Our waterproof bike triangle bag features a superior PVC cover that allows the frame bag to protect molded and water resistant tear resistant parts. (Note: Please wipe off the water when you put it down to extend the life expectancy.) Spacious Capacity: The 36*24*8cm/14*9*3inch large bag for the Front bike frame offers capacity and is great for frequently used essential tools like mini pump, repair tool kit, cable/folding bike lock, tire levers, patch kit, water bottle, cash, cell phone, cards and ID, etc Triangle shape : The slim triangle bike tool bag, placed under the top tube and against the seatstay, effectively help to minimize wind resistance and avoid leg kicks while riding. Adjustable fastening straps for easy installation under the bike tube .Large zippered opening for easy access. Easy attachment: The bike frame bag has 5 straps. These allow you to easily and securely attach the bag to your bike frame with 5 straps. NO MORE NEED TO INSTALL TOOLS. The outdoor tool bag is perfect for most mountain bikes, road bikes and commuter bikes.