Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
britax marathon booster Britax Grow With You Harness Booster Car SeatGrow With You harness 2 booster car seat grows with your child from toddler to big kid. Its made with premium fabrics and padding for superior comfort and style. Installing the seat is simple using the premium, quick push LATCH connectors. 2 layers of side impact protection surround the head, neck & torso. Plus, SafeCell Technology in the base acts as a crumple zone to help absorb crash energy. Quickly adjust the 9 position harness & headrest using
Grow With You™ harness-2-booster car seat grows with your child from toddler to big kid. It’s made with premium fabrics and padding for superior comfort and style. Installing the seat is simple using the premium, quick-push LATCH connectors. 2 layers of side impact protection surround the head, neck & torso. Plus, SafeCell Technology in the base acts as a crumple zone to help absorb crash energy.
Quickly adjust the 9-position harness & headrest using just one hand for the proper fit as your child grows. Once they’re ready to use the seat belt, the 5-point harness tucks away, transitioning to a belt-positioning booster. Color-coded guides help you and your child route the seat belt through the right paths. With arm rests, cup holders and harness comfort pads, even big kids enjoy the ride.
Features:
- Harness mode 25lbs - 65 lbs; Booster mode 40 lbs -120 lbs.
- Stylish, soft-knit fabrics look great in your backseat.
- SafeCell Technology acts as a crumple zone, helping to absorb crash energy.
- Industrial strength steel frame reinforces the seat structure to help keep it stabilized.
- V-shaped tether with staged-release stitches helps slow and reduce forward movement during a crash.
- 2 Layers of Side Impact Protection: Energy-absorbing shell and foam-lined headrest protect your child’s head, neck, and torso.
- Premium, quick-push LATCH connectors for simple, secure installation.
- 9-position, quick-adjust harness & headrest move together using one hand for the proper fit as your child grows.
- 2-position buckle can be moved outward to accommodate your growing child.
- 2 recline positions help you find the most comfortable fit for your child and the best fit for your vehicle.
- 4 cup and snack holders keep drinks, snacks, and toys within reach.
- Harness comfort pads keep your child’s neck from rubbing against the harness strap.
- Nap-friendly padding & fabrics for superior comfort and a quiet ride.
- Color-coded belt guides make it easy for you and your child to route the seat belt through the right paths.
- Easy-to-remove cover for cleaning without uninstalling the car seat or removing the harness.
- Flip-forward buckle stays out of the way for easy boarding.
- Easy-to-clean arm rests help your child ride comfortably.
- Proudly designed, tested and built in the USA with US and global components for safety and quality.
Specifications:
- Product Dimensions: 21" L x 19" W x 25" H
- Car Seat Weight: 23 lbs
- Child Weight Capacity:
- Harness mode 25–65 lbs
- Booster mode 40–120 lbs
- Child Height Capacity: Up to 63"
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
4.2 ★★★★★
Based on 214 reviews
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Product Reviews
★★★★★ 5
Impressive suit for the price
Size: X-Large, Color: Navy Blue
Order suit in my normal size (44R) and it fit perfectly. I’m 6’1” and the pant length set at the correct level. Quality fabric and stitching is well finished. Pants are comfortable at the waist with enough flex to be forgiving.
Very good deal for the price…suit, vest and tie.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Great for tall, slender teenager!
Size: Small, Color: Light Grey, Size: Small, Color: Light Grey
Finding a suit for a tall, slender teenage boy is about as hard as climbing Mt. Everest. Until I found this one!! I was so pleasantly surprised that this suit fit my 15 year old son like a glove. He is 5'10'' and 140 lbs so he needs pants with the proper length and smaller waist. While the waist was slightly big, he didn't need a belt and the pants fell perfectly with a pair of Nike tennis shoes. I ordered a size small and would say the pants were a 32x32 but waist was probably more like a 31. Jacket and vest were a great fit as well. High quality and easy to steam to get the shipping wrinkles out.
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Reviewed in the United States on May 25, 2026
★★★★★ 4
Fantastic suite for the price!
Size: Large, Color: Khaki
I purchased the gray version to evaluate the suit. I ordered a size up based on other reviews and was pleased to discover everything fit well. The jacket fit well around the arms, chest, shoulders, and even my seemingly ever-growing gut. The vest was the same. The pants also fit well around the waist (thanks to the expanding waistband) butt, and thighs. The only problem was the pants were about 2 sizes too long. Considering the price point, I was felt I was still way ahead after paying to have them altered. After a couple week's worth of wear, I purchased 4 more (gray, black, blue and tan). All fit the same way and were easily altered too. The tailor even had the cashier ask me where I purchased these as he was impressed with the quality.
A couple months in and I'm still pleased, although I've had a few issues. My right pocket on my blue pair has ripped it's seam twice, as has the same pocket on one of my gray pair. Considering it's the same pocket, I would suspect I am just heavy handed but this is not a common problem with any of my other clothes. The pants are a bit on the tighter side when I am sitting down so perhaps the stitching is just not strong enough. I have asked the tailor to give me a super stitch in this area and am just about to pick up the gray pair with this new stitch. I'll try to remember to update later on.
Overall, I feel I have really gotten my money's worth out of these suits, especially considering the prices of others. I have been wearing these daily since June and have gotten many compliments.
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Reviewed in the United States on December 3, 2024
★★★★★ 5
Happy teen for prom. 6'1" 170 lbs medium perfect fit
Size: Medium, Color: Black, Size: Medium, Color: Black
This ended up being a great purchase. My son chose this suit for prom. He made sure to check the reviews and size chart and was very happy with the fit, quality and overall look. He's 6'1", 170 lbs and got a medium. It was perfect.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Great suit at a great value
Size: Large, Color: Black
I have ordered several other suits from the seller for my three boys over the last several years for either their prom, special events and graduations. The fit and value are wonderful. I would definitely recommend this suit if you want something that is classy looking, but won’t break the bank
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Reviewed in the United States on April 8, 2026