Fox Frontier II XL

The Fox Frontier II XL uses 100% polyester khaki VenTec fabric with a blackout laminate lining and a 20,000mm hydrostatic head rating. This is a premium waterproofing rating that handles sustained heavy rain and genuine winter conditions without issue.

The blackout laminate also helps keep the interior dark and cooler on bright mornings, which is useful for daytime sleep after a busy night session.

Fox list the bivvy at 20.46kg fully packed. Folded dimensions are 25cm x 25cm x 161cm, with packaged dimensions of 27cm x 27cm x 163cm.

At this weight the Frontier II XL is firmly a barrow or drive-in shelter. Compare this to the standard Frontier II at 19kg packed weight and the Frontier II X at 19kg – the XL is the heaviest of the three sizes, reflecting its larger footprint and additional internal space.

The Frontier II XL comes with a solid infill panel offering three door options (solid, clear PVC and camo mozzy mesh), mesh panels on both door sides, a zip-in groundsheet, a double-zipped carry bag, storm cord eyelets with cords stored in the peg bag, and the Vapour Peak included as standard.

Four internal mesh pockets are provided for storage. Unlike some competitor shelters, Fox include the Vapour Peak in the box rather than as a separate purchase.

All three share identical engineering – the geared ETS boss, spring-loaded keyed elbow joints, 20,000mm VenTec fabric and Vapour Peak. The difference is size. The standard Frontier II measures 250cm x 185cm x 130cm and weighs 19kg packed.

The Frontier II X measures 260cm x 198cm x 140cm at 19kg packed. The Frontier II XL is the largest at 270cm x 210cm x 165cm and 20.46kg packed, offering significantly more headroom and internal space.

Only the X and XL sizes are compatible with the optional Inner Mesh Shield accessory.

Yes. Fox redesigned the ETS Boss (Easy Tension System) into a geared mechanism specifically to prevent the frame collapse that could occur on the original Frontier during erection.

Combined with new spring-loaded, keyed elbow joints that click into perfect alignment, the setup process is noticeably smoother and more reliable than the original Frontier. A refined release trigger also speeds up pack-down at the end of a session.

The Frontier II XL is compatible with the Deluxe Wrap, which extends coverage by 60cm and can convert the bivvy into a two person shelter, the Deluxe Extension, which adds 1.5m of covered space at the front for a twin-skin effect and reduced condensation, the Inner Mesh Shield for additional insect protection, and the Camo Mozzy Mesh Front Panel with a letterbox-style door.

All accessories are sold separately from the main bivvy.