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Description
britax b first Britax Safe-n-Sound B First iFix ISOFIX Car SeatB First iFix is the latest Britax Safe n Sound ISOFIX car seat in the next generation range. Following on from the wildly popular Millenia and Meridian series, the all new iFix offers the most feature rich ISOFIX car seat available in Australia with gorgeous stylings. The Britax next generation range offers parents a selection of child seats that deliver aesthetically beautiful design, safety, comfort and innovation. Britax is the industry leader in
B-First iFix is the latest Britax Safe-n-Sound ISOFIX car seat in the next-generation range.
Following on from the wildly popular Millenia and Meridian series, the all-new iFix offers the most feature-rich ISOFIX car seat available in Australia with gorgeous stylings.
The Britax next-generation range offers parents a selection of child seats that deliver aesthetically beautiful design, safety, comfort and innovation.
Britax is the industry leader in Australian car safety and has once again produced an incredible seat that is ideal for newborns to approximately 4 years of age.
B-First iFix is a beautiful closed protective shell design featuring ISOFIX compatibility and Advanced Side Impact Cushion Technology (SICT) protection.
ISOFLEX connectors allow for installation in vehicles with ISOFIX anchorages.
Dealing with crash energy earlier, the deployable Advanced SICT combines advanced safety with freedom of space.
If ISOFIX compatibility is your need, look no further than B-First iFix.
Features:
ISOFIX COMPATIBLE
ISOFLEX latch connectors allow for installation to vehicles with ISOFIX low anchorages. ISOFIX installation is an alternative method to traditional seatbelt installation.
Side Impact Cushion Technology (SICT)
Advanced SICT is a deployable safety innovation with crumple zone technology. Located on the headrest and Torso, the unique design combines advanced safety and freedom of space.
Rearward Facing Level Indicator
Visual level indicator designed to aid correct rearward installation angles. Full or partially visible, the level indicator offers you an optimal range during installation.
Protective Shell
The enclosed shell design provides enhanced shielding to ensure the child is contained within the protective elements of the child seat. A protective barrier between the child and
the vehicle.
Ventilation Zones
Located in the rear interior and exterior of the seat, the zones offer improved airflow and increased comfort to your child in rearward facing.
Integrated Coloured Belt Paths
Clear, obvious coloured visual belt paths for easier-to-guide correct seat belt installation.
Improved Harness Adjuster
To assist in the prevention of child access, the harness adjuster button is now lower and inset.
Hassle-Free Harness
The frontal easy-adjust headrest can be height adjusted without uninstalling the seat.
Flexi Infant Comfort Insert
This cushion includes EVA composite material that provides support and protection for a small baby. Detachable wings make this cushion flexible for longer use as a seat protector or cushion pad. Remove as required.
Thermo5 High Performance
Thermo5 High-Performance fabric delivers premium comfort your baby deserves.
Specifications:
Following on from the wildly popular Millenia and Meridian series, the all-new iFix offers the most feature-rich ISOFIX car seat available in Australia with gorgeous stylings.
The Britax next-generation range offers parents a selection of child seats that deliver aesthetically beautiful design, safety, comfort and innovation.
Britax is the industry leader in Australian car safety and has once again produced an incredible seat that is ideal for newborns to approximately 4 years of age.
B-First iFix is a beautiful closed protective shell design featuring ISOFIX compatibility and Advanced Side Impact Cushion Technology (SICT) protection.
ISOFLEX connectors allow for installation in vehicles with ISOFIX anchorages.
Dealing with crash energy earlier, the deployable Advanced SICT combines advanced safety with freedom of space.
If ISOFIX compatibility is your need, look no further than B-First iFix.
Features:
ISOFIX COMPATIBLE
ISOFLEX latch connectors allow for installation to vehicles with ISOFIX low anchorages. ISOFIX installation is an alternative method to traditional seatbelt installation.
Side Impact Cushion Technology (SICT)
Advanced SICT is a deployable safety innovation with crumple zone technology. Located on the headrest and Torso, the unique design combines advanced safety and freedom of space.
Rearward Facing Level Indicator
Visual level indicator designed to aid correct rearward installation angles. Full or partially visible, the level indicator offers you an optimal range during installation.
Protective Shell
The enclosed shell design provides enhanced shielding to ensure the child is contained within the protective elements of the child seat. A protective barrier between the child and
the vehicle.
Ventilation Zones
Located in the rear interior and exterior of the seat, the zones offer improved airflow and increased comfort to your child in rearward facing.
Integrated Coloured Belt Paths
Clear, obvious coloured visual belt paths for easier-to-guide correct seat belt installation.
Improved Harness Adjuster
To assist in the prevention of child access, the harness adjuster button is now lower and inset.
Hassle-Free Harness
The frontal easy-adjust headrest can be height adjusted without uninstalling the seat.
Flexi Infant Comfort Insert
This cushion includes EVA composite material that provides support and protection for a small baby. Detachable wings make this cushion flexible for longer use as a seat protector or cushion pad. Remove as required.
Thermo5 High Performance
Thermo5 High-Performance fabric delivers premium comfort your baby deserves.
Specifications:
- Transition Height Marker: 390mm
- Lower Height Marker: 350mm
- Upper Height Marker: 435mm
- Seat Weight: 9.9kg
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
GREAT!
Color: Multicolor-4pack-a1, Size: XX-Large
So comfortable and soft. I love them! No elastic. Sizes were accurate.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 5
10/10
Color: Multicolor-4pack-a1, Size: Small
These are some of my favorite underwear. I find myself reaching for these constantly. They're very good quality and very stretchy. I'm 140 5'3 and I got a small they fit great. Someone larger or smaller would fit in the small too. I do stress that the leg holes are a bit tight on my thighs and I don't have thick thighs at all. On someone with thicker thighs I'd say size up to a medium. You can wear these as mid/high waisted or low waisted. They're versatile! The cotton gusset is a plus too❣️
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Better than Haynes at for less money
Color: Multicolor-4pack-a1, Size: XX-Large
I am surprised by the quality of these knickers. They are better than Haynes for less money and when I say they’re better, I mean far better, but I can’t believe how comfortable and STRETCHY best underwear is
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Reviewed in the United States on April 25, 2026
★★★★★ 5
love love love!!
Color: Multicolor-4pack-a1, Size: Medium
like my daily driver now, like i never thought underwear could be this good untill now! have bought 2 4packd and will probably get more in the future :) they are snug but not suffocating, with my darker skin i was worried of them getting darker in that area but so far(3-4 months) they’ve been holding up well and clean easily in the washing with a bit of stain remover!
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Reviewed in the United States on May 19, 2026
★★★★★ 3
Satisfactory
Color: Multicolor-4pack-a1, Size: X-Large
If your wanting an easy on high waisted underwear these work.
They are honestly strange material, a mix of three different things- not bad but different.
Not seamless, might ride up, slightly on the thicker side. Will last a while. Comfortable enough but not amazing.
Got for after a surgery and needed something different- these worked but would I get on a normal day probably not.
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Reviewed in the United States on May 15, 2026