Now we know EACTLY what happened to Cap's back-up costume.

The heavily padded, patriotically colored swatches of Captain America's secondary uniform -- that were apparently liberated from said secondary uniform -- are currently layering the Captain America Star Logo Loungefly Mini Backpack.

Yes, this stylish Captain America mini backpack accurately simulates Cap's modern super-suit complete with durable reinforced padding, copious pockets, and adjustable straps.

Let's break it down:

The exterior!

• Blue and black leather-like exterior accented with carefully stitched appliques mimicking Cap's padded uniform -- includes a white and subtly glistening star!
  
  
• The sides feature pockets lined with intricate stitching.
  
  
• Long, adjustable shoulder straps with solid metal buckles.
  
  
• A handy top handle!
  
  

Sizable pockets!

• A smaller pouch adorns the front -- opened via brushed, nickel-colored zipper, this front pouch is layered with the aforementioned costume-accurate appliques.
  
  
• A main pocket accessed by way of two brushed, nickel-colored zippers! And the lining? Exquisite -- a soft, smooth, blue interior layered with bright red "CAPTAIN AMERICA" logos.
  
  

Dimensions? Materials? Fine: 

• Measures 8" wide, 10" high, and roughly 5.5" deep.
  
  
• Materials: a smooth faux-leather.