The Sea to Summit Waterproof Nylon Backpack Cover keeps packs dry when hiking, backpacking, or traveling. Made of durable, waterproof 70D polyurethane-coated nylon, with taped seams. Contoured design ensures a snug fit, and includes a drainage hole for ventilation. The cover packs compactly into an included mini stuff when not in use. The Sea to Summit Sea to Summit Waterproof Nylon Backpack Cover is available in four sizes to cover a range of backpacks: X-Small fits packs from 20 to 30 liters, packs down to 4 x 3 inches, and weighs 3.5 ounces; Small fits packs from 30 to 50 liters, packs down to 4.5 x 3 inches, and weighs 3.9 ounces; Medium fits packs from 50 to 70 liters, packs down to 5 x 3 inches, and weighs 4.9 ounces; Large fits packs from 70 to 90 liters, packs down to 5.5 x 3 inches, and weighs 6.1 ounces. Backpack not included. Sea to Summit products are guaranteed against defects in materials or workmanship for the lifetime of the product.

Medium pack cover fits packs from 50 to 70 liters; packs down to 5 x 3 inches, and weighs 4.9 ounces. Packs compactly into included mini stuff sack when not in use. Contoured design ensures a snug fit; drainage hole for ventilation. Made of durable, waterproof 70D polyurethane-coated nylon; seams are tape sealed. Lightweight pack cover for keeping a backpack dry when hiking, backpacking, or traveling (backpack not included).

Date First Available: August 19, 2013. Best Sellers Rank: #394,907 in Sports & Outdoors. Customer Reviews: 4.5 out of 5 stars 37 ratings 4.5 out of 5 stars. : B00ENMWE50. Size: ?Medium. Outer Material: ?Nylon. Style: ?Medium. Part Number: ?225-23. Manufacturer: ?Sea to Summit. Suggested Users: ?Unisex Adult. Material: ?Nylon. Color: ?Outback Red. Warranty Description: ?Manufacturer guarantee against defects in materials or workmanship for the lifetime of the product. Brand Name: ?Sea to Summit. Item Weight: ?0.02 Pounds. Item Dimensions LxWxH: ?30.7 x 11.8 x 13.8 inches. Package Weight: ?0.02 Pounds. Item Package Dimensions L x W x H: ?4.9 x 3.6 x 0.4 inches.