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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.
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:
11.81 USD
Ends:
May 28, 10:29 am
Waterproof Mini Backpack Women Purse Nylon Shoulder Rucksack Small Travel Bag
Waterproof Mini Backpack Women Purse Nylon Shoulder Rucksack Small Travel Bag
Price:
15.69 USD
Ends:
Jun 12, 09:22 pm
New With Tags The North Face Mens Women's BackPack Laptop TSA Bag
New With Tags The North Face Mens Women's BackPack Laptop TSA Bag
Price:
44.90 USD
Ends:
Jun 18, 02:52 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:
May 26, 08:08 am
Men's Women's Nylon Chest Sling Bag Crossbody Shoulder Backpack Sport Satchel
Men's Women's Nylon Chest Sling Bag Crossbody Shoulder Backpack Sport Satchel
Price:
11.99 USD
Ends:
Jun 02, 04:02 pm
Waterproof Chest Pack Travel Shoulder Sling Backpack Crossbody Bag Women Men New
Waterproof Chest Pack Travel Shoulder Sling Backpack Crossbody Bag Women Men New
Price:
15.48 USD
Ends:
May 26, 01:36 pm
Waterproof Sling Backpack USB Port Anti-Theft Men Chest Bag Casual Shoulder Bag
Waterproof Sling Backpack USB Port Anti-Theft Men Chest Bag Casual Shoulder Bag
Price:
23.59 USD
Ends:
Jun 10, 02:55 am
Military Tactical Backpack Daypack Waterproof 30L Bag for Hiking Camping Travel
Military Tactical Backpack Daypack Waterproof 30L Bag for Hiking Camping Travel
Price:
25.49 USD
Ends:
Jun 19, 03:00 pm
Tactical Chest Bag Backpack Military Sling Shoulder Fanny Pack Cross Body Pouch
Tactical Chest Bag Backpack Military Sling Shoulder Fanny Pack Cross Body Pouch
Price:
8.99 USD
Ends:
Jun 10, 08:26 am
80L Outdoor Military Molle Tactical Backpack Rucksack Camping Hiking Bag Travel
80L Outdoor Military Molle Tactical Backpack Rucksack Camping Hiking Bag Travel
Price:
29.99 USD
Ends:
Jun 17, 07:00 am
Men Backpack Fanny Pack Crossbody Sling Shoulder Bag Chest Travel Sport Women
Men Backpack Fanny Pack Crossbody Sling Shoulder Bag Chest Travel Sport Women
Price:
8.95 USD
Ends:
May 25, 04:46 am
Anti-theft Laptop Backpack 16
Anti-theft Laptop Backpack 16" w USB Charging Port Bookback Men Women Travel Bag
Price:
21.96 USD
Ends:
Jun 15, 01:54 pm
16.5
16.5" Trailmaker Classic Lightweight Backpack School Travel Bagpacks
Price:
12.89 USD
Ends:
Jun 11, 06:50 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:
20.99 USD
Ends:
Jun 09, 05:18 pm
Tactical Chest Shoulder Bag Molle Crossbody Sling Backpack Outdoor Travel Hiking
Tactical Chest Shoulder Bag Molle Crossbody Sling Backpack Outdoor Travel Hiking
Price:
10.99 USD
Ends:
Jun 13, 04:24 pm
Men Tactical Sling Bag Pack Military Shoulder Backpack Hiking Camping Fishing US
Men Tactical Sling Bag Pack Military Shoulder Backpack Hiking Camping Fishing US
Price:
22.88 USD
Ends:
Jun 14, 01:54 am
40L Outdoor Waterproof Camping Hiking Backpack Sport Travel Trekking Rucksack US
40L Outdoor Waterproof Camping Hiking Backpack Sport Travel Trekking Rucksack US
Price:
28.49 USD
Ends:
Jun 10, 03:35 am
Men Women Chest Sling Shoulder Bag Cross Body Fanny Pack Sports Travel Backpack
Men Women Chest Sling Shoulder Bag Cross Body Fanny Pack Sports Travel Backpack
Price:
10.85 USD
Ends:
Jun 12, 06:00 pm
Mens Womens Sling Bag Chest Shoulder Backpack Fanny Pack Crossbody Travel Sport1
Mens Womens Sling Bag Chest Shoulder Backpack Fanny Pack Crossbody Travel Sport1
Price:
7.95 USD
Ends:
Jun 18, 03:15 am
Cotton Canvas Travel Equipment Flight Carry Duffle Shoulder Bag (Small or Large)
Cotton Canvas Travel Equipment Flight Carry Duffle Shoulder Bag (Small or Large)
Price:
22.99 USD
Ends:
Jun 11, 07:22 pm
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