Staff bag set using Tyvek Silver, consisting of M and L sizes. M size: 19cm x 31cm, weight 11.5g L size: 32cm x 40cm, weight 22g Please note that there may be slight individual differences due to amateur measurements. The color and shape of the cord and cord stopper may change. The inside will have the Tyvek logo, etc. Although unused, wrinkles and creases are present due to the nature of Tyvek. Pet bottles and gas canisters are photo props and are not included. The material is highly waterproof, but please note that it is not completely waterproof due to the sewing. This is not a manufacturer product, but a handmade item. Please refrain from purchasing if you are looking for perfection. Please understand that the item will be shipped folded. ★Tyvek® Silver is a sheet made by vapor-depositing aluminum onto high-density polyethylene non-woven fabric Tyvek®, and further coating each fiber with an anti-oxidation resin to prevent aluminum degradation. Unlike other products that simply sandwich a breathable aluminum layer between thin waterproof films, this is a robust building material that maintains its waterproof performance for a long time. From the website of Asahi-DuPont Flashspun Products Co., Ltd. Thank you for your consideration. Function: Lightweight