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- USA
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
britax marathon clicktight convert to booster 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:
- 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
4.0 ★★★★★
Based on 291 reviews
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Product Reviews
★★★★★ 5
Great solution
Color: White
It’s embarrassing to say that I love this thing. Nothing falls out, it’s completely hidden, I’m so glad I didn’t go with one of those attachable C shaped wire basket things. It’s absolutely perfect.
We have a motorized sit stand desk.
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Reviewed in the United States on July 29, 2025
★★★★★ 5
Amazing. A bit of a job to set it up but worth it!
Color: Black, Color: Black
Excellent quality. Sturdy and strong. The screws that come with it are awful. Get yourself some different ones.
Takes a while to set it up and get it all measured. I did it while I was setting up my new Flexi-spot E7 Plus standing desk. Wanted to get it all done at the same time. At first. I thought it might be overkill, but I am sooooo glad I did get this. Now my computer moves along with the desk. It looks great. I bet it has improved the air flow around my computer as well.
Looks sleek and cool.
I might have set it a bit too tight around my case and as a result I have to shimmy it to get it out of the holder if I have to do any work on the computers internals. But at least I know it's secure. My suggestion would be to leave a little bit of slack to avoid this in your setup. Maybe like a 1/4 inch would be ok. The pads should hold it in place anyway. May loosen mine up if I find the time.
But it feels totally secure on the desk with no wobble or shaking.
Great product.
Also I'm a woman in my late fifties 😃and I was able to set it all up on my own. So don't be intimidated ladies, you can do it too.
I also bought two of the ultimate set up cable management trays. Great products.
Note for anyone from the Ultimate Setup company who might read this. Please provide better quality wood screws and some extra ones) I stripped three of the cheap ones that came with this. And it took forever to drill them in because they weren't strong enough. Then it would be perfect.
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Reviewed in the United States on November 17, 2025
★★★★★ 5
Solid, simple and perfect.
Color: Black, Color: Black
Great simple design. The quality is evident in the thickness of materials. The assembly instructions, hardware and tools provided help minimize the time spent from opening the box to install. This product is packaged well and shipped with the customer convenience in mind. Well done!
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Awesome quality
Color: White, Color: White
Take your time installing! It comes with all the instructions and templates. Make sure you’re screwing this into solid wood. I would not recommend you hang your expensive PC from a particle board table.
My Pc fits in well and it’s compatible with a ton of different sizes. Mine has been mounted under my desk for about 6 months and is rock solid. I will say, mine is balancing in there. If I don’t have it at its center of gravity, it could tip out. You can adjust it with the various screw holes but make sure you mount it into something solid.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Fantasic under-desk mounting solution for gaming PC
Color: White
This item comes with an incredible amount of tools and guides for making you successful in mounting your desktop PC under the desk. I am very impressed with the quality of the materials and also the quality of documents included. It feel very sturdy using the included hardware.
I would recommend this item for anyone wanting to free up desktop space!
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Reviewed in the United States on March 27, 2026