SKU: 5870847583
britax harness extender

britax harness extender Britax Grow With You Clicktight Harness-to-Booster Seat – Swaddles Baby

Sale price$23.94 Regular price$26.60
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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28

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Description

britax harness extender Britax Grow With You Clicktight Harness-to-Booster Seat – Swaddles BabyThe Britax Harness to Booster Seat grows with your child from toddler to big kid. With its patented ClickTight feature, theres no stressing or struggling! The seat belt paths are open, clearing the way for quick & confident installation. The steel tensioner automatically tightens the seat into your vehicle, taking care of the hard work for you. Choose from plenty of fun colors to match your childs unique personality. Specifications Grows with your

The Britax Harness-to-Booster Seat grows with your child from toddler to big kid. With its patented ClickTight feature, there’s no stressing or struggling! The seat belt paths are open, clearing the way for quick & confident installation. The steel tensioner automatically tightens the seat into your vehicle, taking care of the hard work for you. Choose from plenty of fun colors to match your child’s unique personality. 

 

Specifications
  • Grows with your child from toddler to big kid.
  • ClickTight Installation - Open, thread & buckle, and click it closed.
  • Energy-absorbing shell and foam-lined headrest protect your child’s head, neck, and torso.
  • Exclusive SafeCell Technology acts as a crumple zone, absorbing crash energy to help keep it away from your little one.
  • 9-Position, quick-adjust headrest & harness to create the proper fit as your child grows.
  • Patented V-Shaped Tether staged-release stitches help slow and reduce forward movement during a crash.
  • High Strength Steel Frame reinforces the seat structure to help keep it sturdy and stabilized.
  • 2-position recline finds the most comfortable fit for your child and the best fit for your vehicle.
  • Nap-friendly padding and fabrics for superior comfort.
  • Built-in armrests help your child ride comfortably.
  • The removable cover is easy to remove without taking off the harness.
  • SafeWash variants covers are soft to the touch and safe to machine wash and dry; Knit construction is naturally flame retardant.
  • Cool Flow variants feature ventilated Cool Flow mesh fabric that improves airflow, keeping baby more comfortable. 
  • Four cup and snack holders keep snacks, drinks, and toys within reach.
  • Suitable for children 25-120 lbs.
  • 1-Year Limited Warranty.

Dimensions & Weight

  • Product Dimensions: 21" x 19" x 25"
  • Forward-facing Harnessed Weight: 25-65 lbs.
  • Forward-facing Harnessed Height34" - 49".
  • Belt-Positioning Booster Weigh: 40-120 lbs.
  • Belt-Positioning Booster Height: 44" - 63".

Britax strongly recommends that children should be secured with a harness system until they exceed the weight or height limits specified.

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. 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
    SKU: 5870847583

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    Based on 24 reviews
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    Reviewed in the United States on May 18, 2026
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    Kristen Tryon
    Lowell, US
    ★★★★★ 5
    The BEST water bottle on the market!
    Color: Denim, Size: 32 Ounces
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    Reviewed in the United States on May 26, 2026
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    Rose Cottingham
    Omaha, US
    ★★★★★ 5
    This mattress cover is great! Well worth your money
    Size: Twin XL, Style: 1 Green
    This mattress cover is so comfortable. I am scheduled for back surgery in a week so when I find something I can sleep on and call it comfortable you best believe it is! It fits well, it’s pretty and it’s very fluffy. Seems to be made very well. I am confident that I’ll get a lot of wear out of it.
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    Reviewed in the United States on May 29, 2026
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    Tiffany F.
    Waukegan, US
    ★★★★★ 5
    Very Comfortable - Love this!
    Size: Full, Style: 1 Green
    So far, so good! I am going on my first night trying this mattress topper out. It feels very comfortable and definitely is fluffy, but not too fluffy. I did not "fluff it out" or put it in the dryer to fluff it out quicker, so perhaps it still needs some time to fluff out some more. It was very easy to place on my mattress. I didn't have to fight with it as I normally would when fitting a sheet to my mattress. I love that it stretches over the sides of the mattress to hold it in place. The bamboo truly gives a cooler effect, which will be very helpful in the summer time. I used a microfiber mattress topper prior to ordering this topper. So far, the comparison is that this one appears to be well made and durable, unlike the microfiber one I had before that changes color as it gets old and dirty and is impossible to clean. The old one actually ripped and would constantly move. I am excited to see how well this one holds up over time. I had no trouble placing a fitted sheet over this mattress topper. I love that this one is machine washable and is able to be placed in the drier. It feels very nice on my legs and is comfortable for my back as well. The padding doesn't feel thick or bulky but definitely adds a softness that is super comfortable. It's too soon to tell if it's water resistant as I haven't tested that feature out yet. I placed it over an old, springy mattress and it truly feels like I have a whole new mattress. Time will tell how well this product does the job and I will update this review if I end up having any issues with it.
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    Reviewed in the United States on May 25, 2026
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    PRIVATE
    Fort Morgan, US
    ★★★★★ 5
    IT'S LIKE SLEEPING ON A CLOUD!!
    Size: King, Style: 3 White
    OMG I AM SLEEPING ON A CLOUD!!! THIS! Life changing!!! We went on a Royal cruise and asked for a mattress topper. When we got home I just had to find one for our bed because I sometimes find it to be too hard. Along comes THIS topper! The very first night it was on the bed I slept the entire night without tossing / turning which I NEVER do! Along with every night since! It fits perfectly on our King bed and no issues with the sheets. It does have a chemical smell when you first open the bag - but I put it in the dryer on air only and the smell dissipated in about 20 minutes. No smell at all by the time we went to bed. it appears to be washable. It's very soft so there isn't really any back support. Just adds comfort to the bed. It is bamboo and really as soft as a cloud! Even my husband got into bed the first night and said AHHHHHHH SOFFT! Super bright white appearance. Not sure if it is water resistant. We added it on top of the mattress protector without any issues. All of the FOAM mattress toppers are terrible! They end up getting really heavy, you can't wash them, they get lumpy, and you end up sweating like crazy on them! THIS - nice and cool! And my hubby runs hot!! I call him the heat miser! No issues! We're both very very pleased!! If you're even thinking about purchasing - ADD IT TO YOUR CART NOW!
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