Specification: Name: backpack external package Size: XS-26x11x12cm, S-35x12x12cm, L-43x13x14cm, XL-47x16x19cm Weight(only bag) : about XS-55g, S-60g, L-75g , XL-110g Matrial: UHMWPE fiber Plaid cloth blended Note: Excluding backpack! Size XS Can be used with a lanyard (lanyard not included) Size XS Can be used with a lanyard (lanyard not included)