Tramping Pack Backpack Bag 100L Waterproof Tactical Military Hiking Camping BAG Cables-leads 3 mode choices (Sound/LED Flash/Sound

3 mode choices (Sound/LED Flash/Sound and LED Flash) and 3 alert choices (High Volume Chime/Low Volume Chime/Alarm)

while the rounded corners are thoughtfully designed to prevent collisions and enhance safety

Especially use for the Matching of Warm heating system

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Tramping Pack Backpack Bag 100L Waterproof Tactical Military Hiking Camping BAG Cables-leads 3 mode choices (Sound/LED Flash/Sound100L Waterproof Tactical Military Hiking Camping Traveling Outdoor Backpack Bag with High Strength Buckles, Smooth and Heavy Duty Zippers, Super Reliable and Durable Specification: Colors: Black; Material: 600D Oxford Cloth+Polyester Capacity: 70L, 100L(Expansion) 70L (Before Expansion)Size: 15. 7 x 11. 8 x 29. 5 inches 100L Size (After Expansion): 15. 7 x 11. 8 x 35. 4 inches Applicable occasions: occasions: Mountaineering, hiking, camping,