There are 5 sizes of backpacks ,You can choose according to your needs. 
 30L/35L/40L/80L/100L/ All come with US Velcro Flag ，But only 120L backpack without US Velcro Flag 
 
Note :As shown in the detailed picture, the backpack size is measured after being filled with items, not the size of the empty backpack!!
The measurement method is pure manual measurement, there may be an error of 1-3cm, please understand !thanks !
 
120L  Backpack Detail:
 
 
 
 
 
 
Features:
1. This backpack is designed with maximum comfort in mind. An ergonomic design, a padded hip belt, a height-adjustable back, and a lightweight aluminum frame will carry heavy loads and transfer much of the weight to the hips and legs.
2.The back and the hip belt are equipped with an adjustable cushion system and breathable mesh inserts. It ensures adequate air circulation even during the vigorous hike. 
3.backpack is made of 600D Oxford and Nylon, which makes it waterproof and highly durable. It is highly durable to tear and abrasion. 
4. The assault pack backpack can be used as 3 day assault pack, bug out bag backpack, combat backpack, range bag, hunting backpack, survival backpack, rucksack military army backpack or trekking backpack.
 
Specifications: 
• Material: Oxford fabric
• Adjustable Straps: Yes
• Molle: Adjustable with Hook Loop to attach accessories
• Damping Straps: Yes
• Provides a whopping 120L of space for the traveler, suitable for a 
  multi-day trip
• Capacity: 120L
• Modular Extension: Yes
• Reinforced Handles: Yes
• Overall Dimension: 19.7"L x 11.8"W x 31.5"H
• Colors Available: Black/Khaki/Woodland Camo/Woodland digital/Desert Camo/City Camo/CP Camo/Green
Package Listing：
1*120L Large Backpack
 
 
 
70 L Expand to 100 L backpack detail:
 
 
Gently pull, 70L seconds change to 100L, what do you want to install?
Main warehouse expansion design
Bottom expansion design
Feature:
Item ：70L Expand to 100 L Large capacity outdoor backpack
Type: Outdoor hiking backpack
Net weight: 1.7 kg
Fabric: 600D nylon (commonly known as: Oxford cloth)
Capacity: 70 L Expand to 100 L
Usage: camping hiking outdoor
Size:  15.7"x 11.8" x 29.5"---15.7"x 11.8"x 35.4"
Structure: external structure (front upper pocket, front pouch, side mesh pocket)
Internal structure (main warehouse *1, front warehouse *1, computer compartment *1)
Carry: back thick sponge
 
1.Large space loading:Large capacity main warehouse + 4 large external system
It can Tied tents, mats;Hanging trekking pole;Tied sleeping mats, picnic mats;Side pocket strap
2.Waterproof and breathable fabric
600D density oxford fabric waterproof, scratch resistant, military backpack fabric, tear resistant
Oxford cloth fabric, bid farewell to sultry (to make the back more refreshing)
3.Stereoscopic 3D breathable backpack system (two centimeters thick breathable honeycomb cotton)
 
Package include ：
1* 70 L Expand to 100 L backpack
 
 
 
80L Upgrade New Backpack Detail:
Image 51 - 80L-Outdoor-Military-Molle-Tactical-Backpack-Rucksack-Camping-Bag-Travel-Hiking
 
 
 
 
 
Material：Wear-resistant oxford fabric (thick fabric, tear-resistant, waterproof, scratch-resistant, and suitable for a variety of wild environments)
Size:28"x14"x10"
Color:Black、Khaki、Woodland Camo、Desert Camo、City Camo、Tri-Color Desert Camo
Suited People: Backpacker, traveler, experienced Traveler
Feature：
Multi-pocket design makes it more easy
Bottom zip pocket
Large capacity zip pocket
Side kettle bag
Bottom small bag zip pocket
Come with American flag velcro
Package Listing：
1*80L Large Backpack
 
 
80L Product Detail：
Material：Wear-resistant oxford fabric (thick fabric, tear-resistant, waterproof, scratch-resistant, and suitable for a variety of wild environments)
Size:28"x13"x7"(72x34x17cm)
Color:Black、Khaki、Woodland Camo、Desert Camo、City Camo、Tri-Color Desert Camo
Suited People: Backpacker, traveler, experienced Traveler
Feature：
  1. Multi-pocket design makes it more easy
  2. Bottom zip pocket
  3. Large capacity zip pocket
  4. Side kettle bag
  5. Bottom small bag zip pocket
  6. 3D honeycomb breathable style
  7. Decompression breathable pearl cotton
  8. Seismic EVA layer
  9. breathable sponge to protect waist
  10. Waist buckle
  11. Waterproof
  12. buckle opening and closing design (it's more convenient to open and close the bag)
  13. Velcro design (can be labeled with various signs
  14. hardware slider (good texture, smooth pull and durable)
  15. side storage buckle (make the things inside bag fixed and not easy to to fall)
  16. nylon lanyard design (can be used to hang some items like trekking poles ,  practical and convenient)
  17. nylon hand-held design ( comfortable and durable)
  18. shoulder strap adjustment buckle (free adjustment of shoulder strap length according to demand)
  19. Shoulder strap D-type buckle (can be used for hanging items like keys, practical and convenient)
  20. waist protector design (effectively reduce the burden and at the same time better secure the backpack)
  21. Come with American flag velcro
Package Listing：
1*80L Large Backpack
 
 
 40L  Backpack Detail :
 
 
40L Features:
1.Oxford cloth is wearable and high quality
2. Large capacity design is suitable for several days' walking trip
3. High strength shoulder straps are reliable
4. All buckles can lock
5. It is ideal for wild adventure, tactical use, outdoor sports, etc.
 
 
Specifications:
1. Color: muddy, Army Green, ACU, CP, Desert digital, Jungle digital, Jungle camouflage
2. Dimensions: (11 x 10 x 22)" / (28 x 25 x 56) cm (L x W x H)
4. Capacity: 40L
5. Weight: 32oz / 910g
6. Material: Oxford Cloth 
7. Flag Magic Stickers: Yes
9. Waterproof: Yes
10.Suitable : Neutral
 
 
Package Includes:
1 x 40L Military Tactical Backpack Shoulder Bag
 
 
 
 
35L  Backpack Detail :
 
 
 
 
 
 
  
35L Product Detail：
Colour:Black、Green、Khaki、ACU Camo、CP Camo、Digital Desert Camo、Woodland Camo
35L capacity
Size:11"x10"x20"(28x25x50cm)
Zipper: two-way zipper in the main bag, other one-way
Material: waterproof nylon
Suitable for: outdoor tourism, mountaineering, cycling, hiking, forest crossing, field battle, etc
 
  • Main bag buckle switch
  • Storage compartment
  • High quality waterproof material
  • Module extension
  • Portable mount
  • Reinforced nylon handle
  • Main bag two-way zipper
  • Side module expansion
  • Side fastening buckle
  • Shock absorbing strap
  • Strap fastening buckle
  • Back shock absorption area
  • Belt buckle
  • adjustable in Strap 
  • Portable mount
  • Adjustable in Shoulder strap 
  • suitable and breathable back cushion
  • High quality fabric
  • Delicate buckle
  • Humanized design belt buckle
  • Velcro design
  • Oversized storage space in main bag
Package Listing：
1*35L Hiking Backpacks
 
 
 
 
 
 
 
 
 
 
 
 
30L PRODUCT INFORMATION ：
1. 30L ultra large capacity
2.Top hualian buckle
3.Metal D-type hanging buckle
4.Both sides also have to expand functionality
5.Tightly woven nylon webbing
6.Adjustment buckle
7. Spacious main compartment and smaller zip pockets to accommodate all your gears
8. Powerful add-on hanging system allows you to attach accessories to the top, side and bottom of the backpack
9. Compression straps help stabilize the load and minimize the pack profile
10. Breathable, foam padded back and extra thick shoulder straps keep you cool and comfortable during long travel
11. Chest and waist straps help to alleviate pressure on the spine
12. D-rings on shoulder straps for attachment of water bottles, umbrellas, shoes and more
13. Made of tough oxford fabric with water repellent coating for ultra strength and durability
14. Perfect for camping, hiking, mountain climbing or other outdoor activities
 
 
Specifications:
1. Color: ACU,Black,Army Green,Camouflage,Mud,Sand Color Camouflage,CP ,Pythons Grain black,
               Jungle digital, Sansha camouflage
2. Weight: 29.98oz / 850g
3. Material: Oxford Waterproof Fabric
4. Dimensions: (18"*10"*10")" / (45 x 26x 26)cm (H x L x W )
5. Capacity: 30L
 
 
Package Includes:
1 x 30L Backpack
 
Shipping 
Every item is checked carefully before shipping
Fast Shipping from United States
1. Item will be shipped within 1 business day after received a verified payment and showed "Completed"status. 
    This delivery arrangement is excluding our Public Holiday.
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Return Policy:
1.We accept returns within 30 days from receipt of item.
2.Shipping and handling fees are not refundable. Buyer is responsible for shipping costs incurred shipping products back.
3.If any questions with the item you received, please contact with us first, we DO NOT ACCEPT any returns without communication advance.
Contact us:
1.However at any point in time,if you are not satisfied with your purchase,do not hesitate to contact us via my ebay messages.
2.We are committed to your 100% customer satisfaction in 24 hours.
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