Sample 1:
Made by Patriot Performance Materials in three-color desert (DCU) camo. Design is a copy of the Eagle Industries IIIA pack (Sample 2).
Buckles:
Inside:
Named to a physician attached too Shock Trauma Platoon 2 in Iraq in 2004 (Article: https://www.ncbi.nlm.nih.gov/pubmed/18189183).
Top:

Bottom:

Has similar loops as Eagle bag on the bottom, maybe for tying sleeping bag/tent roll.
Sample 2:
Called the “Ninja Bag” (source: http://soldiersystems.net/2016/05/04/warrior-west-lbt-brings-back-the-original-3-day-pack/).
Buckles:
Made by Eagle Industries after 2002 (according to buckle date code).
Bottom:

Has similar loops on bottom, like Sample 1.
Tag:

Zippers:

Sternum Strap:

Has elastic in the middle.
Sample 3:
This type of jumpable pack was used in Iraq and Afghanistan until approximately 2009 (source: https://www.facebook.com/GearRef/photos/a.390820164705053/390820871371649/?type=3&theater).
Made by London Bridge Trading in Virginia Beach, VA.
Buckles and Tag:
Likely from late 1990s – early 2000s time period (757 area code gold label with 1999 buckles here: https://warriors.militaryblog.jp/e729562.html; Similar buckle markings on 2003 dated example here: https://www.instagram.com/p/1QPXA0FrPN/).
Back:

1000D cordura body with 500D shoulder straps. Very similar to LBT 1547A pack intended for US Army Rangers except with pouches for carrying specialized radio equipment such as antennas and “X” made from Mil-W-4088K webbing on back:
Bottom:
Bottom has webbing compatible with ALICE clips meant for tying objects to the pack to be carried.
Sternum Strap:
Sternum strap has elastic in the middle.
Zipper:

Plastic zipper with YKK metal pulls:
Side Pouches:
Side pouches sewed to backpack.
Inside:
Has velcro “hatches” by top handle.
Inside has tie-down straps (?) for securing gear while jumping.
Ad:

Usage Photos:
LBT:

