---
product_id: 667041308
title: "Grow with You ClickTight Harness-2-Booster Car Seat, Cool Flow Gray"
brand: "britax"
price: "¥321651"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/667041308-grow-with-you-clicktight-harness-2-booster-car-seat-cool
store_origin: JP
region: Japan
---

# Grow with You ClickTight Harness-2-Booster Car Seat, Cool Flow Gray

**Brand:** britax
**Price:** ¥321651
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Grow with You ClickTight Harness-2-Booster Car Seat, Cool Flow Gray by britax
- **How much does it cost?** ¥321651 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/667041308-grow-with-you-clicktight-harness-2-booster-car-seat-cool)

## Best For

- britax enthusiasts

## Why This Product

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

## Description

Grow with You ClickTight Harness-2-Booster Car Seat, Cool Flow Gray

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Model Number | E1C199S |
| Product Dimensions | 53.34 x 48.26 x 63.5 cm; 11.34 kg |
| Item model number | E1C199S |
| Minimum Weight Recommendation | 25 Pounds |
| Maximum Weight Recommendation | 120 Pounds |
| Batteries required | No |
| Item Weight | 11.3 kg |

## Product Details

- **Brand:** Britax
- **Item weight:** 11.34 kg
- **Maximum weight recommendation:** 120 Pounds
- **Minimum weight recommendation:** 25 Pounds
- **UPC:** 652182737948
- **Global Trade Identification Number:** 00652182737948
- **Manufacturer:** AmazonUs/BIYN9

## Images

![Grow with You ClickTight Harness-2-Booster Car Seat, Cool Flow Gray - Image 1](https://m.media-amazon.com/images/I/81u5mtyPX5L.jpg)

## 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
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**Shop now:** [https://www.desertcart.jp/products/667041308-grow-with-you-clicktight-harness-2-booster-car-seat-cool](https://www.desertcart.jp/products/667041308-grow-with-you-clicktight-harness-2-booster-car-seat-cool)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-23*