Choosing the right inflatable paddleboard can make a huge difference to your time on the water and is a question we always get asked in store. Duotone’s latest range focuses on lightweight construction, compact packing size and excellent performance, making these boards ideal for paddlers who want premium quality without sacrificing portability.
The three flagship packages in the range—the Flow Air SLS, Grace Air SLS and Raven Air SLS—are designed for different styles of paddling. Whether you’re looking for an all-round family board, a women’s-specific cruiser or a high-performance touring SUP, there is an option to suit your needs.
What is SLS Technology?
SLS stands for Strong Light Superior. Duotone uses premium woven drop-stitch material and machine-welded rails to create boards that are lighter, stiffer and more compact than traditional inflatable SUPs. The construction reduces weight while also allowing the boards to roll up smaller for easier transport.
Common features across the range include:
- Lightweight backpack gear bag
- Tow and action camera combo mount
- Cargo bungee storage system
- Additional D-rings for optional kayak seat attachment
- Shoulder carry strap
- Compact packing size for travel and storage
- High-quality welded construction for durability and stiffness



Duotone Flow Air SLS – The Ultimate All-Rounder
The Flow Air SLS is the most versatile board in the range and is designed for paddlers who want one board that can do a bit of everything. This is our best selling board in store.
Its shape provides excellent stability, making it suitable for beginners, intermediates, families and recreational paddlers. At the same time, it remains agile enough for small waves and general coastal paddling.
Benefits of the Flow Air SLS
Outstanding stability: The wider outline provides confidence for new paddlers and makes the board forgiving in choppy conditions.
- Versatile performance: Unlike specialist boards, the Flow is designed to perform well in a wide range of environments, making it a true “one-board solution.”
- Easy progression: As skills improve, the board continues to offer enough manoeuvrability to keep paddling enjoyable.
Package Contents
The Flow Air SLS package includes:
- Flow Air SLS board: 9’8″, 10’4″ or 10’8″
- Adjustable 3-piece paddle
- Double Action HP8 pump
- Fin
- Backpack-style gear bag
- Coiled leash
- Repair kit



Duotone Grace Air SLS – Designed Specifically for Women
The Grace Air SLS has been developed specifically for female paddlers looking for a lightweight, easy-handling inflatable SUP. The board combines stability and efficiency while keeping overall weight exceptionally low. It is an all-round board tailored towards women who want a classic SUP feel with modern travel-friendly performance.
The Grace is available in two versions:
- 10’4″ all-round shape (based on the Flow Air SLS)
- 11’2″ touring shape (inspired by Duotone’s touring designs)
Benefits of the Grace Air SLS
- Lightweight and easy to manage: One of the lightest boards in the category, making transport and setup significantly easier.
- Confidence-inspiring stability: The shape offers a comfortable, balanced ride that helps build confidence quickly.
- Travel-friendly design: The compact packed size is ideal for apartments, campervans and air travel.
- Choice of riding styles:The 10’4″ version excels as an all-round board, while the 11’2″ option offers better glide for longer-distance paddling.
Package Contents
The complete Grace Air SLS package includes:
- Grace Air SLS board: 10’4″ or 11’2″
- Fanatic Diamond adjustable 3-piece paddle
- Fanatic Double Action HP8 pump
- Fin
- Gearbag Pocket backpack
- Coiled leash
- Repair kit



Duotone Raven Air SLS – Built for Touring and Distance
The Raven Air SLS is designed for paddlers who want to cover more water with less effort. Featuring a longer, narrower outline than the Flow or Grace, it delivers superior glide, tracking and efficiency.
This is the board for adventurers, fitness paddlers and anyone planning longer journeys on flat water. Duotone describes the Raven as a touring and freerace inflatable SUP that combines portability with excellent straight-line performance.
Benefits of the Raven Air SLS
Exceptional glide: The longer shape helps the board travel further with every paddle stroke.
Excellent tracking: The touring outline keeps the board moving straight, reducing the need to switch paddle sides constantly.
Efficient performance: Ideal for covering distance with less fatigue.
Premium lightweight construction: Despite its touring focus, the Raven remains remarkably light and compact when packed away.
Package Contents
The Raven Air SLS package includes:
- Raven Air SLS board
- Adjustable 3-piece paddle
- Double Action HP8 pump
- Touring fin
- Backpack-style gear bag
- Coiled leash
- Repair kit
Which Duotone SUP Should You Choose?
| Board | Best For | Skill Level |
|---|---|---|
| Flow Air SLS | All-round paddling, families, beginners | Beginner to Intermediate |
| Grace Air SLS | Female paddlers wanting a lightweight all-round board | Beginner to Intermediate |
| Raven Air SLS | Touring, fitness and longer-distance paddling | Intermediate to Advanced |
If you want a single board that can handle almost any situation, the Flow Air SLS is the safest choice. If lightweight handling and a women’s-specific design are priorities, the Grace Air SLS stands out. For paddlers who enjoy covering distance and maximising efficiency on the water, the Raven Air SLS is the clear winner.
Whichever model you choose, Duotone’s SLS construction delivers a premium inflatable SUP experience with impressive stiffness, portability and durability that will keep you paddling for years to come.
If you have any questions, please get in contact with us at Fluid Lines – 01206 545533











































