---
product_id: 364541461
title: "Grow with You ClickTight Harness-2-Booster Car Seat - 2 Layer Impact Protection - 25 to 120 Pounds, Cool Flow Gray [Newer Version of Frontier]"
brand: "britax"
price: "¥223214"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/364541461-grow-with-you-clicktight-harness-2-booster-car-seat-2
store_origin: JP
region: Japan
---

# ClickTight 3-step secure install Cool Flow mesh fabric 2-layer impact protection Grow with You ClickTight Harness-2-Booster Car Seat - 2 Layer Impact Protection - 25 to 120 Pounds, Cool Flow Gray [Newer Version of Frontier]

**Brand:** britax
**Price:** ¥223214
**Availability:** ✅ In Stock

## Summary

> 🚗 Safety Meets Style: The Car Seat That Grows with Your Family

## Quick Answers

- **What is this?** Grow with You ClickTight Harness-2-Booster Car Seat - 2 Layer Impact Protection - 25 to 120 Pounds, Cool Flow Gray [Newer Version of Frontier] by britax
- **How much does it cost?** ¥223214 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/364541461-grow-with-you-clicktight-harness-2-booster-car-seat-2)

## Best For

- britax enthusiasts

## Why This Product

- Trusted britax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Premium Comfort Pads:** Soft, stay-put pads prevent neck irritation, ensuring your little one rides in cozy style.
- • **Grows with Your Child:** Seamlessly transitions from harness to booster mode, supporting kids from 25 to 120 pounds.
- • **Stay Cool, Stay Comfortable:** Innovative Cool Flow mesh fabric enhances airflow, keeping your child fresh on every ride.
- • **Effortless Safety in 3 Steps:** ClickTight system guarantees a perfect, secure install every time—no guesswork, no stress.
- • **Trusted American Craftsmanship:** Proudly made in the USA with durable polyester/nylon blend for long-lasting use.

## Overview

The Britax Grow with You ClickTight Harness-2-Booster Car Seat offers a cutting-edge 3-step ClickTight installation system, 2-layer impact protection, and a breathable Cool Flow mesh fabric. Designed for children 25 to 120 pounds, it effortlessly converts from a forward-facing harness to a belt-positioning booster, combining safety, comfort, and longevity in one sleek, USA-made package.

## Description

Grow with You ClickTight Harness-2-Booster Car Seat - 2 Layer Impact Protection - 25 to 120 Pounds, Cool Flow Gray [Newer Version of Frontier]

## Features

- Trusted Quality, Upgraded Design: Looking for Frontier? Grow with you ClickTight is our newest harness to booster car seat
- Install Confidently: With ClickTight, you know it's right in just 3 easy steps. Open, thread & buckle, close
- 2 in 1 Booster Seat: Easily transitions from forward facing Harness Mode to belt positioning booster mode as your child grows from toddler to big kid
- Cool Flow Mesh Fabric: Improves air flow to keep your child cool and comfortable
- More Comfort: Stay put, soft comfort Pads keep your child's neck from rubbing against the harness strap

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Model Number | E1C199S |
| Minimum Weight Recommendation | 25 Pounds |
| Maximum Weight Recommendation | 54.43 kg |
| Maximum Height Recommendation | 63 Inches |
| Material | Fabric,Mesh |
| Material composition | Polyester/nylon |
| Care Instructions | Hand Wash, Line Dry |
| Number of items | 1 |
| Batteries required | No |
| Orientation | Forward Facing |
| Rear-facing maximum child weight | 120 Pounds |
| Product Dimensions | 53.34 x 48.26 x 63.5 cm; 11.34 kg |
| Item model number | E1C199S |
| Manufacturer recommended age | 24 months and up |
| Manufacturer | AmazonUs/BIYN9 |
| Item Weight | 11 kg 300 g |

## Product Details

- **Brand:** Britax
- **Installation Type:** Seat Belt
- **Material:** Fabric,Mesh
- **Colour:** Cool Flow Gray
- **Orientation:** Forward Facing
- **Item Weight:** 11.34 kg
- **Maximum Weight Recommendation:** 54.43 kg
- **Minimum Weight Recommendation:** 25 Pounds
- **Age Range (Description):** Toddler
- **Maximum Height Recommendation:** 63 Inches

## Images

![Grow with You ClickTight Harness-2-Booster Car Seat - 2 Layer Impact Protection - 25 to 120 Pounds, Cool Flow Gray [Newer Version of Frontier] - Image 1](https://m.media-amazon.com/images/I/81u5mtyPX5L.jpg)

## Available Options

This product comes in different **Colour** options.

## Questions & Answers

**Q: Compared with the pinnacle, it looks like the height limit for the 5-point harness is much lower. is that accurate? how is that an improvement?**
A: My old version is the Pioneer from 2014 that I have been using for the past 7 years and I bought this new seat for both my 3 year old and 8 year old.  The Two car seats look exactly the same.  After purchasing I noticed the specs changed on the newer Model as my older Pioneer says that the Harness is for 30-56 inches and at least 2 years of age (I was using this as my guide as to whether this was the right model for our needs.)  Problem is our 3 year old is just barley under the new height limit of 34 inches and my soon to be 8 year old is one inch away from the updated max height of 49 inches.   I measured with a measuring tape the height the seats go up to at the highest and the lowest setting and they are exactly the same as my older Pioneer Model.  In fact, when I measured my 3 and  7 year old sitting in the car seat, their ears and head are within the recommended location, so I am unclear as to why they made the change, especially since our Pediatrician recommended we keep our 45 pound 8 year old in the 5 point harness as it is so much safer than getting whiplash from relying on the seat belt buckle.

**Q: “Naturally flame retardant” — does this mean free of chlorinated/brominated chemicals?**
A: Thank you for asking! This seat meets the Flame retardant standard without chemicals

**Q: What is the difference between the grow with you and the grow with you plus?**
A: Thank you for asking! The grow with your plus has the additional side impact cushions on the outside otherwise they are the same seat.

**Q: What is the difference between this seat and the frontier click tight?**
A: Thank you for asking! The frontier click tight has a different shell and a higher harness weight limit.

## Frequently Bought Together

- Britax Grow with You ClickTight Harness-2-Booster Car Seat, Cool Flow Gray
- Britax One4Life Convertible Car Seat, 10 Years of Use from 5 to 120 Pounds, Converts from Rear-Facing Infant Car Seat to Forward-Facing Booster Seat, Performance Fabric, Cool Flow Carbon
- Britax Poplar S Convertible Car Seat, 2-in-1 Car Seat with Slim 17-Inch Design, ClickTight Technology, Stone Onyx

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**Shop now:** [https://www.desertcart.jp/products/364541461-grow-with-you-clicktight-harness-2-booster-car-seat-2](https://www.desertcart.jp/products/364541461-grow-with-you-clicktight-harness-2-booster-car-seat-2)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-02*