The  B4 SWIFT makes a perfect VFR Flight Bag with room for one or two  headsets, an iPad, a handheld radio, and organization for all the little  tech accessories. Remove the 4-inch Center Section and end up with the  B-zero SLIM. Two different bags for the price of one.
Included Items:
 					- Pocket Cap Front 							 						 					
- CS4 							 						 					
- Flat Cap Rear 							 						 					
- Side Pocket Alpha 							 						 					
- Side Pocket Charlie 							 						 					
- Main Handle 							 						 					
- Shoulder Strap 							 						 					
 
NOTE:
If  you're an Airline Captain and you plan on carrying your B2 COMPUTE  on  your J-Hook hanging off the back of your rolling suitcase, you  should  swap out the included MAIN HANDLE and instead purchase the MAIN HANDLE J-HOOK (see the Accessories Page). This alternate handle serves to keep the J-Hook centered on the BrightLine Bag.
SIZE:
Interior of CS4: 13.5" tall, 10.0" wide, 4.0 inches deep. (34cm x 25cm x 10.2cm)
 Exterior of entire bag: 14.0" tall, 10.5" wide, 6.5" deep. (36cm x 27cm x 16.5cm)
  Keep in mind that the bag material is flexible, so the size of the   interior storage may be able to "stretch" out just a bit in one   direction or another. Also keep in mind that over-stuffing your bag can   cause seam or material failure, and this is not covered by warranty.
EMPTY WEIGHT:
4.6 lbs. (2.1 kg)
TOTAL NUMBER OF AVAILABLE FLEX SYSTEM SIDE POCKETS:
Two. (One FLEX-Mount side pocket station on each side of the CS4.)
MODULAR EXPANSION CAPABILITY:
Unlimited.   You can add any of the other FLEX System modules to this  bag, in ay  order, to make a bag as big or as small as you need on any  given day.
EMBROIDERY OPTIONS:
The  top front pocket cover of the POCKET CAP FRONT module can be  removed  to make it easy to add custom embroidery. Just remove this  pocket cover  and hand it directly to your current embroidery provider.   (We don't  offer any embroidery service.)
• DESCRIPTION •
The B4  SWIFT is often recommended as the ideal VFR flight bag. It's  designed  to hold one or two full-sized headsets plus a handful of  charts, and/or  an iPad, plus all the small stuff you'll want along for  the ride. It  also serves as an unbeatable carry-on personal bag when  traveling on  commercial flights, or just as a terrific daily bag for a  wide variety  of personal and professional uses.
The B4 consists of the POCKET  CAP FRONT, CENTER SECTION 4, FLAT CAP  REAR, along with two Side  Pockets, Alpha and Charlie.  (It also includes  the MH and SS.  It does  NOT include a SLIM HANDLE KIT.  If you ever  think you'd like to remove  the CS4 and zip just the two End Caps  together to make the B0 SLIM,  you'll need to make sure you also order an  SLIM HANDLE KIT.)
The  CS4 provides, that's right, four inches of storage depth, but  keep in  mind that there is also two thin flat storage areas BETWEEN the  three  modules. (Remember, it is a soft bag so it can expand slightly in  every  direction.)  Keep in mind also that you can add any other Center   Section to the B4 (like zip a CS2 in between the CS4 and the FCR) to add   more storage on certain days.  Any FLEX System module can zip onto any   other FLEX System module. The Main Compartment of the CS4 has locking   zipper sliders.
This configuration will very commonly be used to  carry two full-sized  aviation headsets of any brand.  (There is a nice,  slightly-tricky way  place two large headsets - like the BOSE A20 -  inside this space. Just  "intertwine" the ear cups in opposite  directions. It's really nice to  fit two headsets of any kind in such a  relatively small space.)
There is a specially-designed pocket on top of the CS4 to hold Sunglasses and their case.
A  small collection of charts or flight docs can go in the space  between  the CS4 and either of the End Caps. A 13" Ultrabook or MacBook  Pro can  also fit into this "in between" space, and the iPad (or other  tablet)  can go in the main pocket on the FLAT CAP REAR
The B4 SWIFT also  works amazingly well as a daily personal bag and/or  as a commercial  carry-on bag. A 13" laptop plus a load of documentation  plus an iPad,  plus all the small stuff like cables, adapters and  support stuff for  all your technology, your digital camera, snacks, etc -  all of this  fits easily in this bag. Even your noise-reduction headset  for those  long flights.
The other great thing about this bag is that it is  actually TWO bags  for the price of one. Not only is it a B4 SWIFT, but  you can also build a  B0 SLIM by removing the center section and zipping  just the two End Cap  modules together.  (If you ever think you'd like  to remove the CS4 and  zip just the two End Caps together to make the B0  SLIM, you'll need to  make sure you also order an SLIM HANDLE KIT.)
Storage  on the B4 starts with the POCKET CAP FRONT: The POCKET CAP  FRONT acts  like the "hub" for your entire FLEX System. No matter which   configuration you carry you'll be attaching the POCKET CAP FRONT to one   end of your bag. And it's the "hub" because it holds all the important   small stuff and tech stuff and personal stuff that you want with you no   matter what. If you change configurations, you'll always move the  POCKET  CAP FRONT to the new configuration which means you'll always  have all  this key stuff with you, without any repacking or reloading.
 
  PCF:   The POCKET CAP FRONT module offers a variety of pockets  organized  into three "main" pockets and six "secondary" pockets for a  total of  nine small pockets on the front panel. In these nine pockets  you'll  store all the cords, cables, chargers, batteries, stylus, memory  cards,  USB drives, etc, for all your electronic gear. All these  important items  will finally be separated and organized like you've  always wanted. In  addition, you'll have room for your flight timer,  fuel testers, E6B,  flashlights, compact portable GPS, etc. Not to  mention space for your  wallet, keys, cellphone, business cards,  multi-tool, glasses, pens,  markers, and things like Ibuprofen,  Chapstick, bandaids, etc, and even  your digital camera. There is also a  flat half-height slip pocket on the  inner surface of the module where  you can stow an important document or  two like a copy of your medical  or your passport.
CS4:   Next, comes the CS4 (4-inch Center  Section), which is designed  to hold two full sized aviation headsets.   The CS4 comes with a divider  shelf which serves to separate the  compartment if necessary.  You can  instead fit 13” laptops or a small  collection of documents (or both).  (Many, but not all, 14" laptops will  also fit. - But no 15" laptops will  fit.) The CS4 has a really  versatile dual-access feature. First, you  get full top-access. You can  unzip just the top of the bag to give  access to your stuff right  through the top of the bag. And then when you  need, everything can also  be accessed by unzipping the entire front  panel all the way down to  the bottom, giving access to the entire gray  interior of the CS4. The  Main Compartment of the CS4 has locking zipper  sliders. The other key  thing about the CS4 is that it has two FLEX-Mount  Side Pocket stations,  one on each side, for attaching the two included  side pockets. You  can, of course, also trade out the pockets any time  you like later on.
The  FLAT CAP REAR module offers two flat pockets on the outside, and  one  flat half-height slip pocket on the inner surface of the module. The   primary outer pocket is accessed from the top and has a cover flap that   is secured with Velcro. This where you'll likely store your iPad (as   long as it's not in a thick case), or a manilla folder or two for some   documents, or a magazine. There is a second flat panel that covers   two-thirds of the outside of the main panel that is broken into two   halves - an upper panel and a lower panel. By default, the bottom edge   of the upper panel is "tucked" into the top edge of the lower panel.    This allows both panels to act together as a single slip pocket that   works great for sticking a boarding pass or other simple paperwork here.    If the top panel is "untucked" from the bottom panel, this allows the   telescoping tubes of a suitcase or folding cart to pass through and  the  panel serves to secure your bag to those tubes (especially when  this  FLAT CAP REAR is attached to other modules to form bigger bags  like the  B2 COMPUTE, B4 SWIFT or the B7 FLIGHT).  Then, when you're  done putting  your BrightLine Bag on top of your suitcase, you can just  "tuck" the top  panel back into the bottom panel and it becomes a slip  pocket again.
And finally, the SIDE POCKETS. The side pockets  attach to the side of  any module that has a FLEX-Mount Side Pocket  Station. In the case of  the B4, the side pockets will mount on the  sides of the CS4. This  mounting method is super-secure, simple to  install, and best of all,  your pockets don't LOOK like they're  detachable.
SIDE POCKET ALPHA is often called the "Radio Pocket".  It will hold  any, repeat - ANY, handheld radio. And the top flap is  such that the  antenna can just stick right out the side. In addition,  the SPA is great  for holding a water bottle. The front face of the  pocket has an  expansion zipper, so the pocket can hold larger or  smaller water  bottles. It will hold up to a 20 oz bottle.
SIDE  POCKET CHARLIE is often called the "Pen Pocket". It has four pen  slots  on the outer surface plus a zippered pouch that has room for  pens,  marker, highlighter, spare reading glasses, etc. Of course, many  people  will put completely different things in there besides pens. It's a   great pocket many different purposes.