BrightLine Bags® B4 SWIFT Flex System Flight Bag – VFR Carry-On

Protect your headsets, iPad®, and charts with the BrightLine Bags® B4 SWIFT Flex System Flight Bag. Modular CS4 converts to B0 SLIM—ideal VFR and carry-on.

• Modular FLEX System: CS4 center section (4" depth) zips on/off—customize capacity or convert to B0 SLIM.
• Pilot-ready storage: Holds one or two full-size aviation headsets, iPad®, charts, sunglasses pocket, and tech accessories.
• Dedicated side pockets: SIDE POCKET ECHO (insulated bottle) and SIDE POCKET FOXTROT (large zippered pocket for radios or gear).
• Carry-on & daily use: Durably built for VFR flights, airline carry-on, and everyday tech/camera use.
• Secure & expandable: Main compartment locking zipper sliders and unlimited modular expansion with other FLEX modules.

The BrightLine Bags® B4 SWIFT Flex System Flight Bag is a highly versatile modular bag engineered for VFR pilots and frequent travelers. The CS4 center section provides four inches of primary storage depth and—together with the two thin flat "in-between" areas—accommodates one or two full-size headsets (including large models such as the BOSE A20), an iPad®, charts, sunglasses, and all the small tech items pilots carry. Two FLEX-mounted side pockets (Echo and Foxtrot) add insulated bottle storage and a large zippered compartment for radios or accessories. The CS4 main compartment includes locking zipper sliders for added security, and the bag converts to a compact B0 SLIM by removing the CS4 and zipping the end caps together (Slim Handle Kit sold separately). Lightweight, expandable, and built for on-the-go organization, the B4 SWIFT doubles as an excellent carry-on or daily professional bag.

Technical Specifications

• Part Number: B4-01
• UPC: 854156005026
• Interior (CS4): 13.5" H × 10.0" W × 4.0" D (34cm × 25cm × 10.2cm)
• Exterior (entire bag): 14.0" H × 10.5" W × 6.5" D (36cm × 27cm × 16.5cm)
• Empty Weight: 4.6 lbs (2.1 kg)
• Flex Side Pockets: 2 (one FLEX-mount station per side)
• Modular Expansion: Unlimited—compatible with all BrightLine FLEX System modules
• Included: Main handle, shoulder strap, SIDE POCKET ECHO, SIDE POCKET FOXTROT
• Not Included: Slim Handle Kit (required to convert to B0 SLIM with handles)

Note: Bag materials are flexible and interior space may expand slightly. Avoid over-stuffing; seam/material failure from over-stuffing is not covered by warranty.