---
product_id: 36183657
title: "BrightLine Bags Unisex-Adult Flex B4 Swift Echo Bag, Black, Big"
brand: "brightline bags"
price: "$579.92"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/36183657-brightline-bags-unisex-adult-flex-b4-swift-echo-bag-black
store_origin: US
region: United States of America
---

# BrightLine Bags Unisex-Adult Flex B4 Swift Echo Bag, Black, Big

**Brand:** brightline bags
**Price:** $579.92
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** BrightLine Bags Unisex-Adult Flex B4 Swift Echo Bag, Black, Big by brightline bags
- **How much does it cost?** $579.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/36183657-brightline-bags-unisex-adult-flex-b4-swift-echo-bag-black)

## Best For

- brightline bags enthusiasts

## Why This Product

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

## Description

BrightLine Bags Unisex-Adult Flex B4 Swift Echo Bag, Black, Big

## Images

![BrightLine Bags Unisex-Adult Flex B4 Swift Echo Bag, Black, Big - Image 1](https://m.media-amazon.com/images/I/513ysIBC9hL.jpg)

## Questions & Answers

**Q: Will this bag hold a 15” laptop computer?**
A: Unsure. Some 15” laptops are huge. I only have an iPad pro in it. Lots more room

**Q: you sent me this bag with missing parts. you did not include any of the modules as in the product picture. What is your problem?**
A: First off, I am not the seller.   I am just another customer who purchased this product.   You sent this via the ask fellow customer questions section.   Perhaps you can identify the sellers, “problem” by emailing them.

**Q: Is it made of ballistic nylon or any other kind of durable nylon material? Thanks!**
A: Yes.  Mine has been through over a year of almost daily use and there is no sign of wear and tear.

**Q: Will a portable radio fit easily into the side pocket?**
A: This one is perfect size for a pocket.

---

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**Shop now:** [https://www.desertcart.us/products/36183657-brightline-bags-unisex-adult-flex-b4-swift-echo-bag-black](https://www.desertcart.us/products/36183657-brightline-bags-unisex-adult-flex-b4-swift-echo-bag-black)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-10-02*