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Description
britax safe n sound meridian sict Britax Safe-n-Sound B-First iFixBritax b first ifix is the number one isofix car seat of Britax, featuring advanced SICT, a protective shell and a rearward facing level indicator to help with installation. Britax next generation range offers parents a selection of child seats. that deliver on aesthetically beautiful design, safety, comfort and innovation. As safety leaders, we are here for all your firsts, seconds and growing family needs. Britax b first ifix car seat is a beautiful
Britax b-first ifix is the number one isofix car seat of Britax, featuring advanced SICT, a protective shell and a rearward-facing level indicator to help with installation.
Britax next-generation range offers parents a selection of child seats. that deliver on aesthetically beautiful design, safety, comfort and innovation. As safety leaders, we are here for all your firsts, seconds and growing family needs.
Britax b-first ifix car seat 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 WITH ISOFLEX® LATCH: ISOFLEX latch connectors allow for installation to vehicles with ISOFIX low anchorages. ISOFIX installation is an alternative method to traditional seatbelt installation.
- 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.
- 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 making 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
| Suitability | From birth to 4 years (approx.) |
|---|---|
| Rearward Facing | From birth to 2-3 years (approx.) |
| Forward Facing | From 12 month to 4 years (approx.) |
| Rearward Facing | H: 508mm W: 467mm D: 728mm |
| Forward Facing Upright | H: 650mm W: 467mm D: 538mm |
| Lower Height Marker | 350mm |
| Transition Height Marker | 390mm |
| 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
4.1 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Great Value for Cool Thigh Protection
Color: 02-multicolour (4-pack), Size: XX-Large
For the price, I'm not sure there are better women's boxer shortlettes anywhere. I've tried more expensive brands, and for quality and cooling, these are right up there. I have other bamboo viscose undies that still get gross when I get sweaty in the summer, but these, with the large mesh panel, really help wick away a lot of that moisture, keeping you feeling dryer and cooler. I find that the leg openings are comfortable and don't roll up! and the waist band doesn't dig, nor does it roll down. These do not provide any compression, and I wasn't looking for any. I just wanted some cooling, thigh protecting women's boxers that wouldn't break the bank. These are them! Bonus- I've washed them and put them in the dryer (following their instructions), and they haven't shrunk; they look about the same and are nice and soft.
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Reviewed in the United States on July 28, 2025
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
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Reviewed in the United States on January 24, 2026
★★★★★ 5
Pregnant lady review! Soft, comfortable, cool.
Color: 03-multicolour (4-pack), Size: Large
So soft, comfortable and cool. I'm pregnant and I've gained weight in my legs. I love wearing dresses but my thighs were rubbing together too much. These are perfect to wear under dresses. I also wear them under my bibs at work and it keeps me from getting overheated but I don't have to worry about whether or not my underwear show since they just look like shorts. I wish these came in maternity. I just keep them below my belly. I'll be buying more for sure.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
I want to live in these
Color: 01-multicolour (4-pack), Size: Medium
I bought 4 different sets of new underwear. Unfortunately these came last. It’s unfortunate, because if they had come first I would have cancelled all my other orders or returned them and ordered more of these. I never want to wear anything else ever again; these are the comfiest undies I’ve ever owned, I want to live in them. I can wear them under pretty much anything except leggings or very tight pants (but let’s be honest, I don’t wear those anyway.)
They are incredibly soft and breathable, they wash well, don’t roll, keep my thighs from rubbing, are comfy to sleep in, and the colors were true to the photo.
Just a heads up, they are on the thin side and just a bit see through in the rear.
I’m 5’5” 140lbs and the mediums fit perfectly, they go about mid-thigh.
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Reviewed in the United States on July 30, 2025
★★★★★ 5
Extremely comfortable
Color: 02-multicolour (4-pack), Size: X-Large
These are by far the softest and most comfortable underwear I have ever owned. The leg portion absolutely does roll up as so many others have mentioned, however, I did not find that to be uncomfortable at all just annoying that they don’t stay in place.
I bought these specific underwear to see if it would help alleviate HS symptoms at all. They have definitely helped with wicking moisture away from the skin. More time will tell if it’s truly helpful for HS. For now, I will recommend these. They are thin, breathable, butter soft, wick moisture comfortable and I would buy again…maybe in a different style next time. I have washed them several times and they seem to be holding up rather well so that is also of supreme importance given the cost of the item.
Again, I would recommend this item and plan on purchasing more in a different style very soon.
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Reviewed in the United States on September 13, 2025