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Description
britax ifix Britax Safe N Sound B-First ifixYou will love this if You are looking for the latest isofix car seat. The Britax B First ifix is their #1 isofix car seat, featuring advanced SICT, a protective shell, and a rearward facing level indicator to help with installation. A little bit more info. 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
You will love this if...
You are looking for the latest isofix car seat. The Britax B-First ifix is their #1 isofix car seat, featuring advanced SICT, a protective shell, and a rearward facing level indicator to help with installation.
A little bit more info....
- 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.
- Advanced 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.
- ISOFLEX latch connectors allow for installation to vehicles with ISOFIX low anchorages. ISOFIX installation is an alternative method to traditional seatbelt installation.
- 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.
- Features the all new Thermo5 high performance fabric which delivers the premium comfort your child deserves.
- 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.
- Integrated coloured belt paths - Clear, obvious coloured visual belt paths for easier to guide seat belt installation correctly.
- 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 safety cushion - This cushion includes EVA composite material that provides support and protection for a small baby. Detachable wings making this cushion flexible for longer use as a seat protector or cushion pad. Remove as required.
- Extended rearward facing accommodating a child up to approximately 2-3 years.
Lower Height Marker
350mm approx. Transition Height Marker 390mm approx. Upper Height Marker 435mm approx. - Warranty - Britax Safe-n-Sound injection moulded car seats are covered by:
- 5 year warranty on seat moulding, harness and fittings;
- Fabric covers, comfort pad and padding are covered by a 2 year warranty; and
- Extend it up to 10 years by registering online with Britax
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
4.8 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Good quality, smooth feel
I got these briefs so recently that have washed just one pair so far. First off, these are very comfortable, the material is soft & bordering silky, good quality sewing. Wash well and minimal if any shrinkage. They do come a bit wrinkled from the dryer but hey, these are underwear and will go on smoothly. If it were a t-shirt, I would look sloppy. I feel the sizing is accurate. No rolling and these don't announce themselves under clothing. Planning on getting more of these boxers and replacing my old panties.
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Reviewed in the United States on January 31, 2026
★★★★★ 4
A little snug on the thighs
Size: Medium, Color: Multicoloured G (5-pack)
Super comfy, soft and thin. For reference, I'm 5'6", 135, athletic build. I bought medium. I almost returned them because I thought they were a bit too snug on my thighs, and my thighs are not large at all. I was concerned about panty lines under snug clothing. But, because they're thin, I figured they would probably stretch, so I kept them. So far, I've only worn them under a night shirt, but they're super comfortable and they dont ride up at all. Very nice, but if your thighs are a little thick, you probably won't like them.
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Reviewed in the United States on August 29, 2025
★★★★★ 5
Functional + Sexy
Size: Small, Color: Multicoloured E-(5-pack), Size: Small, Color: Multicoloured E-(5-pack)
Not only do these feel good, my husband can’t keep his hands off me. They fit so good and are soft. I change into these to sleep but also just use them as shorts to wear around the house. They’re comfortable and don’t slide around. I got a size small and I’m 100lbs.
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Finally!
Size: X-Large, Color: All Black D (5-pack)
Finally, comfortable underwear that don’t end up giving me a wedgie. I have a round booty and most cuts of underwear end up shifting as I walk and sit. The hem of the underwear comes right under my cheeks and the lightweight material ensures there’s no panty line and no shifting to where I don’t want them! I’m definitely purchasing more.
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Reviewed in the United States on May 17, 2026
★★★★★ 3
Ehh
Size: Medium, Color: Multicoloured E-(5-pack)
Very thin, still comfy but very thin material. Super soft though. I've worn and washed and they have held up but I won't be repurchasing bc these are so thin
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Reviewed in the United States on April 14, 2026