Lightweight nylon backpack cover, compatible with 35/40L. - Model Name: JUST FIT PACK COVER 35/40L - Brand: mont-bell - Material: Nylon - Price: ¥2,500 I bought this a while ago and have kept it stored without using it. Please refrain from purchasing if you are overly concerned about condition. To reduce shipping costs, it will be shipped without the storage bag. Thank you for looking.