< Product Overview> A 2-way specification that combines a pannier bag function that can be attached to the rear carrier of a bicycle and a backpack function that is convenient for walking mobility. It is a stylish design that can be used in a wide range of situations, from business to everyday life, while eliminating the problem of sweat and stuffiness when carrying it on the back of urban cyclists. < Features> 2-way specification: You can switch between "pannier bag ⇔ backpack" just by flipping the flap Excellent water resistance: seamless crimping + PU/TPU coated material for safe rainy weather Large capacity 18L: Can be used for a wide range of purposes, from commuting to work and school to shopping and outdoor activities Comfortable carrying comfort: breathable mesh + 5 cushion pads reduce stuffiness User-friendly design: The bag is angled when the rear carrier is attached, making it difficult for the heel to hit when pedaling Business-friendly design: Simple and modern look that is easy to match with suits and everyday wear < points of sale> Ideal for commuting to work or school by bicycle (sweat and stuffiness measures + storage capacity) As a rainy weather bag, it can also be appealed to the rainy season and autumn rainy season. By balancing fashion and functionality, it can be sold to a wide range of targets at outdoor shops, lifestyle shops, and bicycle specialty stores.