NRS - Hydrolock Mapcessory Map Case Navigating by paper chart or topo map is a skill worth keeping sharp, and the NRS HydroLock Map Case makes sure your navigation tools stay dry, visible, and accessible when you need them most. The HydroLock zip seal provides a completely waterproof closure that keeps charts, maps, and guidebooks protected from rain, spray, and the occasional capsize. A clear urethane window lets you read both sides of your map without opening the case, and corner attachment points make it easy to lash securely to a deck bag, bow line, or any convenient point on your boat so it stays right where you need it on a long crossing or multi-day touring route. Four sizes accommodate everything from a folded topo section to a full nautical chart, and the larger sizes double as waterproof storage for a wallet, snacks, or a warm hat. A note on maintenance worth keeping in mind: periodically clean the HydroLock sealing surfaces and lubricate with 303 Protectant to keep the closure operating smoothly and sealing reliably trip after trip. Not in stock? Give us a call at Frontenac Outfitters and we'll get it right to your door. HydroLock waterproof zip seal closure Clear urethane window, readable from both sides Corner attachment points for deck lashing Available in four sizes: XS, S, M, L XS interior window: 6" L x 9" W S interior window: 8" L x 12" W M interior window: 15" L x 12" W L interior window: 18" L x 15" W Maintenance: lubricate sealing surfaces with 303 Protectant Not in stock? Give us a call and get it right to your door! Size Interior window dimensions: Overall dimensions: XS 6" L x 9" W 10" L x 11" W S 8" L x 12" W 12" L x 14" W M 15" L x 12" W 18 7/8" L x 13 7/8" W L 18" L x 15" W 21 5/8" L x 16 7/8" W
