---
product_id: 683885938
title: "15/21 Cubic Feet Car Roof Bag"
brand: "costway"
price: "R9570"
currency: ZAR
in_stock: true
reviews_count: 7
category: "Costway"
url: https://www.desertcart.co.za/products/683885938-15-21-cubic-feet-car-roof-bag
store_origin: ZA
region: South Africa
---

# 100% Waterproof triple-layer PVC 4-digit combination lock security Universal fit with 10 reinforced straps 15/21 Cubic Feet Car Roof Bag

**Brand:** costway
**Price:** R9570
**Availability:** ✅ In Stock

## Summary

> 🚗💨 Elevate your road trip game with waterproof, secure, and spacious rooftop storage!

## Quick Answers

- **What is this?** 15/21 Cubic Feet Car Roof Bag by costway
- **How much does it cost?** R9570 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/683885938-15-21-cubic-feet-car-roof-bag)

## Best For

- costway enthusiasts

## Why This Product

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

## Key Features

- • **Spacious Freedom:** Generous 15 cubic feet (414L) capacity fits multiple suitcases, tents, and sleeping bags effortlessly.
- • **Slip-Free Stability:** Anti-slip mat shields your car roof and keeps your cargo firmly in place on any terrain.
- • **Lock & Load Security:** Integrated 4-digit combination lock plus zipper hooks for ultimate anti-theft protection.
- • **Weatherproof Warrior:** Triple-layer 840D PVC fabric with rain curtain keeps your gear dry rain or shine.
- • **Effortless Setup & Storage:** Includes all mounting straps, door hooks, and a storage bag for quick install and compact packing.

## Overview

The COSTWAY 15 Cubic Feet Car Roof Bag is a universal-fit, 100% waterproof rooftop cargo carrier made from durable triple-layer 840D PVC. It features a secure 4-digit combination lock, anti-slip mat to protect your vehicle and cargo, and a roomy 414L capacity ideal for family vacations or camping. Easy to install with reinforced straps and door hooks, it ensures your gear stays safe and dry on any adventure.

## Description

COSTWAY 15/21 Cubic Feet Car Roof Bag, 100% Waterproof Roofing Cargo Carrier with Anti-Slip Mat, Combination Lock & Straps, Rooftop Luggage Storage Box (Black+Grey, 15 Cubic Ft/414L) : desertcart.co.uk: Automotive

Review: Would Recommend ! - Amazing Quality, Fits perfectly on the car! No Leaking! Only noise is from the anti slip mat! But it's very quiet if you aren't listening for it! We use it all the time travelling over ferry's and 12 hour drives! I would recommend buying a different lock if you want to feel a little bit more safe with your belongings.
Review: Useful… but - Useful, it does what it says on the tin, however not the easiest thing to set up or load.

## Features

- 【100% Waterproof and Tearproof Design】 Made of triple-layer high density 840D PVC with well-stitched 4-ply strap seams, the weather resistant car rooftop bag is snow-proof, waterproof, sunproof and dust-proof. Moreover, to ensure 100% water resistance, the waterproof zipper is protected by 10cm extended rain curtain with hook and loop fasteners.
- 【Upgraded Safety】 The car cargo carrier comes with an anti-slip mat, which is designed to protect your car roof from scratches and prevent the luggage from sliding. Besides, it is equipped with a 4 digit combination lock and hooks to prevent the zipper from falling apart at high speeds or bumpy road driving, thus protecting your luggage.
- 【Great Compatibility】 This rooftop cargo carrier is suitable for kinds of vehicles, such as SUVS, pickups, wagons, hatchbacks, with side rails, cross bars, basket or without roof racks. Equipped with 10 reinforced straps with buckles and 6 door hooks, you can easily and firmly install the rooftop cargo carrier on roof top without racks to ensure a safe trip.
- 【Roomy Storage Space】 With a large capacity of 15 cubic feet/414L, our luggage storage box can accommodate 4 sleeping bags, 3 medium suitcases, and 2 double tents, perfectly solving the problem of lack of storage space in your vehicle. Therefore, it will be ideal for your family vacation, camping or road trip.
- 【Easy to Setup & Store】 In addition to the heavy duty rooftop cargo bag, the package also includes 1 drawstring storage bag, 1 anti-slip mat, 6 door hooks, 1 luggage lock and clear installation instructions. You can easily place all accessories in the provided storage bag for future use. Note: Please always face the side with logo and no zipper towards the front of the vehicle to better protect your cargo from rain.
- NOTE: During prolonged rainy weather, store the product indoors to avoid water immersion. Ensure it is completely dry before use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DQCBW4ZL |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | 26,856 in Automotive ( See Top 100 in Automotive ) 22 in Roof Boxes |
| Brand | COSTWAY |
| Brand Name | COSTWAY |
| Closure Type | Zipper |
| Colour | Black |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 26 Reviews |
| Folded size | 56 x 43 x 21.5 cm (L x W x H) |
| Included Components | 1 x Car Roof Bag, 1 x Non-Slip Mat |
| Item Dimensions L x W x H | 112L x 86W x 43H centimetres |
| Item Volume | 15 Cubic Feet |
| Item volume | 15 Cubic Feet |
| Manufacturer | COSTWAY |
| Manufacturer Part Number | 3225GB35815 |
| Manufacturer Warranty Description | 1 |
| Mounting Type | strap mount |
| Mounting type | strap mount |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product dimensions | 112L x 86W x 43H centimetres |
| Shell Type | Soft |
| Unit Count | 1.0 count |
| Water Resistance Level | Waterproof |
| Water resistance level | Waterproof |

## Product Details

- **Brand:** COSTWAY
- **Colour:** Black
- **Material:** Polyvinyl Chloride (PVC)
- **Mounting type:** strap mount
- **Water resistance level:** Waterproof

## Images

![15/21 Cubic Feet Car Roof Bag - Image 1](https://m.media-amazon.com/images/I/71PxWnBjd+L.jpg)
![15/21 Cubic Feet Car Roof Bag - Image 2](https://m.media-amazon.com/images/I/81F+ZTYyEyL.jpg)
![15/21 Cubic Feet Car Roof Bag - Image 3](https://m.media-amazon.com/images/I/814RJctQ56L.jpg)
![15/21 Cubic Feet Car Roof Bag - Image 4](https://m.media-amazon.com/images/I/81ejmCSsTzL.jpg)
![15/21 Cubic Feet Car Roof Bag - Image 5](https://m.media-amazon.com/images/I/81Eer7pnGoL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Would Recommend !
*by S***E on 21 March 2026*

Amazing Quality, Fits perfectly on the car! No Leaking! Only noise is from the anti slip mat! But it's very quiet if you aren't listening for it! We use it all the time travelling over ferry's and 12 hour drives! I would recommend buying a different lock if you want to feel a little bit more safe with your belongings.

### ⭐⭐⭐⭐ Useful… but
*by M***S on 12 June 2026*

Useful, it does what it says on the tin, however not the easiest thing to set up or load.

### ⭐⭐⭐⭐⭐ Good for occasional use
*by G***S on 12 April 2026*

Great product - easy to store and use. Good if you have limited space for a roof top box and only use occasionally. Just bear in mind that unlike a roof top box, you cannot leave this street-parked.

## Frequently Bought Together

- COSTWAY 15/21 Cubic Feet Car Roof Bag, 100% Waterproof Roofing Cargo Carrier with Anti-Slip Mat, Combination Lock & Straps, Rooftop Luggage Storage Box (Black+Grey, 15 Cubic Ft/424L)
- Amazon Basics Cross Rail Roof Rack, 132 cm, Fits up to 117 cm Spans between Raised Side Rails with Gap, Pack of 2, Black/Silver
- Bison Gear Premium Tie Downs - Car Roof Rack Cam Buckle Straps for Surfboard Kayak or Cargo Lashing, 16ft 5m Long, 1in 25mm Wide, Heavy Duty (4 Pack, Black)

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**Shop now:** [https://www.desertcart.co.za/products/683885938-15-21-cubic-feet-car-roof-bag](https://www.desertcart.co.za/products/683885938-15-21-cubic-feet-car-roof-bag)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-10-18*