Product Overview

Introducing the Ergonomic Waterproof Sling Backpack by Kalsten, designed for the modern adventurer. This sleek and stylish bag is perfect for short trips, city commutes, and outdoor adventures.

Key Features

Ergonomic Design: Crafted to match the contours of your body, providing superior comfort during use.
Waterproof Material: Made from high-quality, water-resistant fabric to keep your belongings safe from the elements.
Adjustable Strap: Features a customizable strap for a secure fit, whether worn over the shoulder or across the body.
Multiple Compartments: Includes several pockets for organized storage, allowing easy access to essentials like your phone, wallet, and gadgets.
Lightweight and Compact: Perfect for travel, this backpack won't add unnecessary weight while still providing ample storage.
Modern Aesthetic: Sleek, minimalist design that suits any outfit, making it a versatile accessory for both work and play.

Why Choose Kalsten?

At Kalsten, we prioritize quality and functionality, ensuring that our products not only meet but exceed your expectations. This Ergonomic Waterproof Sling Backpack combines style and practicality, making it an essential addition to your gear collection.

At Symbol Fashion, we're committed to fast, reliable, and hassle-free delivery.

We ship only within the United States via USPS and FedEx
Processing takes 1–3 business days (order cutoff: 5:00 PM PST)
Shipping takes 5–7 business days after processing
Total delivery estimate: 6–10 business days from order to arrival

5-minute cancellation window after placing an order.

See our full Shipping Policy here.

We want you to love what you order, but if something isn’t quite right, returning it is simple.

30-day return window from delivery date
Items must be in original or near-original condition
Returns accepted for damaged items, wrong items, or sizing issues
Returns by mail only — no in-person drop-offs
Symbol Fashion covers return shipping for our errors; customers cover it for changes of mind or exchanges
No restocking fees

See our full Return Policy here.