※After purchase, please inform us of your desired color (Black/Gray) via transaction message. [Product Description] This is a roll-top pack liner that maximizes the waterproof properties of DCF (Dyneema). It ensures waterproofness, allowing you to pack items you absolutely don't want to get wet, such as sleeping bags and changes of clothes, with peace of mind. Only the roll-top opening is sewn with a sewing machine; the body is finished solely with bonding and adhesion. We believe this results in higher waterproofness than seam sealing with a sewing machine. *DCF's weakness is that the needle holes from sewing machines can expand under pressure. Therefore, Under Dog Gear minimizes the use of sewing machines in production. Other features below↓ ・Made with thick 1.43oz DCF (Dyneema) for durability. ・Appropriate size for packs of 35L or more. (Example 1: For 3 seasons, a down sleeping bag/insulation of up to ~800g, long pants, socks, etc.) (Example 2: For mid-winter, a down sleeping bag, a small amount of change of clothes, etc.) ・The bottom is shaped into a rectangle to fit the pack's shape, so it does not compromise the pack's fit when worn. [Specifications] Material: DCF (Dyneema Composite Fabric) 1.43oz Color: Black, Gray Size: Height 56 x Width 39 x Bottom (24 x 14) cm Capacity: Approx. 19L Recommended pack size: 35L or more Weight: 48g *There may be slight changes from the photos in parts such as the thread. *Due to the nature of the fabric, some wrinkles may be present from the manufacturing process. We appreciate your understanding. Other products↓ #Under_Dog Material...UL/Ultralight, Dyneema, DCF Size...11-25 L