Ultralight protection for gear in any weather The Hyperlite Mountain Gear Roll-top Stuff Sacks provide a water-resistant storage solution for keeping essential gear dry in wet conditions. Made from durable Dyneema Composite Fabric (DCF11), these ultralight sacks add an extra layer of protection inside a pack without unnecessary weight. Their cylindrical design makes loading and unpacking easy, while the roll-top closure with ¾" side-release buckles ensures a secure seal. Though not a fully waterproof dry bag, they offer exceptional water resistance when properly rolled down, making them ideal for storing food, clothing, or even use as a pack liner. Available in multiple sizes for versatile packing needs. Features Constructed from DCF Dyneema Composite Fabric for lightweight durability Water-resistant design provides excellent protection (not submersible) Cylindrical shape allows for easy packing and unpacking Roll-top closure with ¾" side-release buckles for a secure seal Taped seams enhance water resistance Compatible with any backpack Available in multiple sizes for different packing needs Specifications Materials: Dyneema Composite Fabric (DCF11) Sealing: Taped seams with roll-top closure Water Resistance: Yes (but not submersible) Specification 3L 5L 10L 15L 25L Claimed Weight 23 g 25 g 34 g 36 g 45 g Height 35.6 cm 35.6 cm 49.5 cm 53.3 cm 64.8 cm Diameter 15.2 cm 16.5 cm 20.3 cm 21.6 cm 25.4 cm