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A backpack—also called knapsack, schoolbag, rucksack, rucksac, pack, sackpack, booksack, bookbag or backsack—is, in its simplest frameless form, a fabric sack carried on one's back and secured with two straps that go over the shoulders, but it can have an external frame, internal frame, and there are bodypacks. Backpacks are commonly used by hikers and students, and are often preferred to handbags for carrying heavy loads or carrying any sort of equipment, because of the limited capacity to carry heavy weights for long periods of time in the hands. Large backpacks, used to carry loads over 10 kilograms (22 lb), as well as smaller sports backpacks (e.g. running, cycling, hiking and hydration), usually offload the largest part (up to about 90%) of their weight onto padded hip belts, leaving the shoulder straps mainly for stabilising the load. This improves the potential to carry heavy loads, as the hips are stronger than the shoulders, and also increases agility and balance, since the load rides nearer the wearer's own center of mass.
30L Outdoor Military Molle Tactical Backpack Rucksack Camping Hiking Travel Bag
30L Outdoor Military Molle Tactical Backpack Rucksack Camping Hiking Travel Bag
Price:
25.99 USD
Ends:
Jul 23, 09:42 am
30L/40L/80LOutdoor Military Tactical Backpack Rucksack Camping Hiking Bag Travel
30L/40L/80LOutdoor Military Tactical Backpack Rucksack Camping Hiking Bag Travel
Price:
20.99 USD
Ends:
Jul 16, 10:13 am
Men Backpack Molle Tactical Sling Chest Pack Shoulder Bag Outdoor Hiking Travel
Men Backpack Molle Tactical Sling Chest Pack Shoulder Bag Outdoor Hiking Travel
Price:
12.98 USD
Ends:
Jul 19, 06:02 pm
Men's Sling Backpack Waterproof Anti-theft Shoulder Crossbody Chest Bag USB Port
Men's Sling Backpack Waterproof Anti-theft Shoulder Crossbody Chest Bag USB Port
Price:
25.98 USD
Ends:
Jul 25, 05:07 pm
Men Anti Theft Extra Large 17.3
Men Anti Theft Extra Large 17.3" Laptop Backpack USB Travel School Business Bag
Price:
30.39 USD
Ends:
Jul 26, 02:12 am
Men's Sling Crossbody Bag Anti-theft Chest Shoulder Messenger Backpack USB Port
Men's Sling Crossbody Bag Anti-theft Chest Shoulder Messenger Backpack USB Port
Price:
15.48 USD
Ends:
Jul 11, 09:36 pm
Men Women Backpack Bookbag School Travel Laptop Rucksack Zipper Bag 15.6''
Men Women Backpack Bookbag School Travel Laptop Rucksack Zipper Bag 15.6''
Price:
15.95 USD
Ends:
Jul 14, 08:23 pm
Mens Backpack Waterproof Tactical Sling Chest Pack Shoulder Bag Outdoor Hiking
Mens Backpack Waterproof Tactical Sling Chest Pack Shoulder Bag Outdoor Hiking
Price:
7.99 USD
Ends:
Jul 02, 09:21 pm
36L Nylon Travel Backpack Waterproof Outdoor Rucksack Men Camping Hiking Bag
36L Nylon Travel Backpack Waterproof Outdoor Rucksack Men Camping Hiking Bag
Price:
22.99 USD
Ends:
Jul 26, 08:08 am
Men Women Sling Bag Chest Fanny Packs Cross Body Travel Shoulder Backpack NEW
Men Women Sling Bag Chest Fanny Packs Cross Body Travel Shoulder Backpack NEW
Price:
9.95 USD
Ends:
Jul 12, 02:13 am
Extra Large TSA Friendly Durable Travel Backpack Anti-Theft 17
Extra Large TSA Friendly Durable Travel Backpack Anti-Theft 17" Laptop Bag
Price:
42.95 USD
Ends:
Jul 27, 12:33 am
Mens Backpack Tactical Sling Shoulder Bag Molle Travel Chest Pack Outdoor Hiking
Mens Backpack Tactical Sling Shoulder Bag Molle Travel Chest Pack Outdoor Hiking
Price:
12.99 USD
Ends:
Jul 07, 11:45 pm
Men Backpack Tactical Sling Bag Chest Shoulder Fanny Pack Cross Body Molle Pouch
Men Backpack Tactical Sling Bag Chest Shoulder Fanny Pack Cross Body Molle Pouch
Price:
12.99 USD
Ends:
Jul 17, 08:06 pm
Men's Leather Sling Pack Chest Shoulder Crossbody Bag Backpack Biker Satchel
Men's Leather Sling Pack Chest Shoulder Crossbody Bag Backpack Biker Satchel
Price:
15.99 USD
Ends:
Jul 17, 04:12 pm
Heavy Duty Clear Transparent Backpack See Through Book-bag
Heavy Duty Clear Transparent Backpack See Through Book-bag
Price:
12.99 USD
Ends:
Jul 11, 06:26 am
Men Backpack USB Charging Waterproof Laptop Shoulder Bag Travel School Rucksack
Men Backpack USB Charging Waterproof Laptop Shoulder Bag Travel School Rucksack
Price:
23.89 USD
Ends:
Jul 22, 01:30 am
30L Outdoor Military Molle Tactical Backpack Rucksack Camping Bag Travel Hiking
30L Outdoor Military Molle Tactical Backpack Rucksack Camping Bag Travel Hiking
Price:
20.89 USD
Ends:
Jul 12, 08:47 am
Women Men Sling Bag Cross Body Handbag Chest Shoulder Bag Sport Travel Backpack
Women Men Sling Bag Cross Body Handbag Chest Shoulder Bag Sport Travel Backpack
Price:
6.99 USD
Ends:
Jul 11, 04:32 pm
Men's Leather Backpack Shoulder Bag Weekender Travel School Laptop Bags Daypack
Men's Leather Backpack Shoulder Bag Weekender Travel School Laptop Bags Daypack
Price:
34.99 USD
Ends:
Jul 03, 07:05 am
Mens Sling Bag Backpack Fanny Pack Crossbody Shoulder Travel Sport Messenger
Mens Sling Bag Backpack Fanny Pack Crossbody Shoulder Travel Sport Messenger
Price:
8.95 USD
Ends:
Jul 15, 12:58 am
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