The Signature M pannier is the perfect waterproof pannier for an urban lifestyle. Whether you ride to work, to the park for a picnic, or to the grocery store on your way home, it will suit your needs. Pack it with groceries, laundry, or books; its patented Cam-lock attachment system will safely hold your belongings, no matter the road conditions! Also, you can ride in peace knowing that your laptop is well-secured in the padded and waterproof compartment.