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Ships within 48 hours · Estimated delivery Jun 28 - Jul 3
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Description
britax hi liner Safe N Sound Hi-Liner SGYou will love this if You want the tallest E type Booster seat on the market to suit your 4 year old for as long as possible! The Safe N Sound Hi Liner SG is built to cater for tall children and parents who want the ability to use a five point harness. The Hi Liner features the Slideguard clip to prevent any abdominal damage in a car accident. Most important features The Hi Liner SG is suitable with your childs shoulders are in line with the lower
You will love this if...
You want the tallest E type Booster seat on the market to suit your 4 year old for as long as possible! The Safe N Sound Hi-Liner SG is built to cater for tall children and parents who want the ability to use a five-point harness. The Hi-Liner features the Slideguard clip to prevent any abdominal damage in a car accident.
Most important features
- The Hi-Liner SG is suitable with your childs shoulders are in line with the lower shoulder height markers with the headrest at its lowest point. You know your child has outgrown the seat when the headrest is at its highest position and their shoulders are above the upper height marker
- The headrest is super easy to adjust with a simple single-handed adjustment to allow the seat to grow with the child
- The seat belt paths are colour coded in red so you can't miss them. This ensures the seatbelt is always correctly positioned
- Exclusive Slideguard clip prevents your children from sliding under the lap-belt
The Nitty Gritty
Suitable for - Children from 4 years old and onwards (shoulder height markers determine when child is suitable exactly) to approximately 8 years old.
Weight - 5.27kg
Warranty - Britax Safe-n-Sound injection moulded car seats are covered by:
- 5 year warranty on seat moulding, harness and fittings; and
- Fabric covers, comfort pad and padding are covered by a 2 year warranty.
- Extend it up to 10 years by registering online with Britax
Dimensions - H: 695mm - 840mm x D: 370mm x W: 455mm
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 655 reviews
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Product Reviews
★★★★★ 4
Comfortable and Supportive, but Adjust the Filling
Color: White-cooling Basic, Size: Queen(Pack of 2), Color: White-cooling Basic, Size: Queen(Pack of 2)
I’m very happy with this pillow. The size is big and it feels soft while still providing good support, perfect for midnight scrolling on TikTok.
One thing to keep in mind is that it can feel a little too tall if you use all of the filling that comes with it. The good news is that you can easily adjust the amount of filling to find the height that works best for your sleeping position. Once I customized it, it was much more comfortable.
Overall, great quality, comfortable, and worth the purchase.
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Reviewed in the United States on June 3, 2026
★★★★★ 5
BEST PILLOWS EVER!!!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I am very picky with my pillows because I have a bad neck and I can never seem to find a good pillow. But I tried this pillow because it had everything I was looking for and the price was great! You get two of them and they are absolutely awesome.! normally I would need to lay on two pillows to try and get comfortable but with these pillows I just lay on one and I wake up with no neck pain. They really have a nice cooling effect. They actually puff up immediately after opening them. All you have to do is just shake them up and the pillow just puffs straight up.. It comes with extra cushioning if you want it to make it firmer and if you don’t want it as firm as it is, you can actually take some out. It really is such a beautiful pillow. It’s perfect in every way to me being such a picky pillow person.
You just lay your head down on it and it forms around your neck and your head and when you get up, it goes right back to its normal form. It doesn’t get flat and I love it. I completely recommend this to anyone who is a person who has a hard time finding a really good pillow.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Top of the line, best pillows Ive ever had
Color: White-cooling Basic, Size: Queen(Pack of 2)
These pillows are top of the line! I bought them in 2024 and they are still fluffy. When they lose a little fluff, you just punch em around a little bit and voila, like new again. They have kept their shape cery well and do great for cooling. I haven't had to add more filling yet either. I just laid my head on one and thought, I need to do a review cause everytime i lay on these pillows its like clouds. My head is heavy and this is relief :-D
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Reviewed in the United States on May 21, 2026
★★★★★ 3
Weird smell
Color: White-cooling Basic, Size: Queen(Pack of 2)
The pillows are great for someone looking for something cool and comfortable. We loved them so much that we bought a second pair. However, we were seriously disappointed with the odor of our last purchase. They give off a strong and indescribable chemical/burning plastic smell so nauseating that it’s difficult to sleep with. We’re hoping this issue will resolve with a couple more washes of the pillow cases, but am worried the source is the stuffing itself.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
helped treat my sore neck
Color: White-cooling Basic, Size: Camping Pillow(Pack of 1)
This pillow — after dialing in the right amount of shredded foam — has greatly helped my sore neck. Initially, I had to remove some foam. Then I gradually added foam until it reached optimum comfort and support.
It is also CPAP-friendly — especially when I position my head near the pillow's edge. (I am a left-side sleeper.)
I like the travel size because I use a bulky hugging pillow to ease stress on my shoulder and elbow. That makes my side of the bed feel cramped if using a larger head pillow. A smaller pillow is easy to flip end-to-end in the middle of the night.
I have spent lots of money on pillows over the years, but this is the best I've ever had for relieving [1] neck pain and [2] CPAP mask seal problems. Very comfortable, supportive, and affordable.
I did not notice any unpleasant smell — and I am usually sensitive to that kind of thing.
Would highly recommend.
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Reviewed in the United States on May 7, 2026