The Ultimate ION KITE Waist Harness Guide
Welcome to the Ultimate ION Waist Harness Guide — your complete resource for understanding the latest innovations, designs, and performance features in ION’s harness lineup. Whether you’re a beginner learning your first transitions or a seasoned kitesurfer chasing big air and wave control, this guide will help you find the perfect ION harness for your riding style.
Discover ION Harnesses
ION’s harness collection represents the perfect fusion of performance, comfort, and control. Engineered for all experience levels, the range includes both waist harnesses and seat harnesses, ensuring every rider can achieve the ideal balance of freedom and support.
Your choice begins with riding style and preference. Waist harnesses deliver unrestricted movement, responsiveness, and agility — ideal for advanced riders focused on wave riding, freestyle, or big air performance. In contrast, seat harnesses offer outstanding lower-back support and stability, making them the perfect choice for beginners, freeriders, or anyone prioritizing comfort during extended sessions.
Choose Your Perfect Fit
Within the ION waist harness lineup, you’ll find a wide selection of shell constructions, each tailored to specific performance needs. From soft shell harnesses that offer ultimate comfort and flexibility to rigid hard shell designs built for maximum load transfer and control — and innovative hybrid shell options that combine both worlds — ION ensures there’s a harness for every riding style and discipline.
Each model is the result of cutting-edge research, premium materials, and ergonomic design, offering riders a secure, natural fit that enhances comfort and confidence on the water.
Innovation That Defines a Leader
Driven by continuous research and rider feedback, ION has established itself as a global leader in kiteboarding harness technology. Every model is designed to improve posture, increase power efficiency, and provide lasting comfort through precision construction and intelligent material use.
Explore the full ION Waist Harness Guide below to discover what’s new, what’s improved, and which harness will take your riding to the next level.


Hard Shell Harnesses
For riders who demand maximum support and control, ION Hard Shell Harnesses deliver uncompromising performance. Designed with rigid back panels for superior load distribution, these harnesses enhance stability, power transfer, and precision — especially during powered-up sessions and high jumps. Perfect for advanced riders, they offer the ultimate blend of support, responsiveness, and comfort in a sleek, high-performance design.
Construction
Each ION Hard Shell Harness is built with a unique back plate, available in Carbon, Curv, or laser-cut Curv materials. These advanced composites provide exceptional stiffness and durability while maintaining ergonomic comfort. The result is a harness that locks your body securely in place, giving you direct feedback and control, no matter how hard you push. Every material variant offers its own distinct advantages — from the ultra-stiff responsiveness of Carbon to the slightly more flexible feel of Curv.
Weight & Materials
Despite their rigid construction, ION Hard Shell Harnesses remain impressively lightweight. The non-absorbent internal cushioning keeps the harness comfortable and dry, ensuring consistent performance session after session. This thoughtful combination of strength and minimal weight gives riders the freedom to focus on performance without fatigue.
Fit & Comfort
A perfect fit is essential for both comfort and performance. When your harness fits like a glove, you’ll barely notice it’s there — even during long, high-intensity sessions. All ION Hard Shell Harnesses come equipped with the Ergo_Pad, allowing for a tailored fit that supports your spine and enhances overall ergonomics.
Choosing the Right Hard Shell Harness
ION’s expanded hard shell range includes multiple Curv and Carbon constructions, each designed to suit different riding styles and preferences. Whether you’re chasing explosive freestyle sessions or looking for powerful wave control, there’s a model built for your needs. Explore our comprehensive comparison guide to learn more about each construction and find the perfect hard shell harness for your riding style.
| SPECTRE | RIOT CURV | RIOT LIGHT | |
|---|---|---|---|
| CONSTRUCTION | Carbon hard shell construction. The carbon fusion plate brings maximum rigidity offering excellent responsiveness and back support. | The Riot Curv comes with a complete 3D molded Curv hard shell, which results in strong back support. | The Riot Light comes with a perforated 3D molded Curv hard shell,offering back support with slightly more flex. |
| STIFFNESS (1-20) | 20 | 14 | 13 |
| FOAM | Full EVA Hydro_Cush Liner. Elevated side parts offer a snug fit. | Viscous elastic Hyper_Foam that creates an ergonomic fit without soaking up water. | Full EVA Hydro_Cush Liner. Elevated side parts offer a snug fit. The integrated Ergo_Pad protects the spine from injuries and excessive impacts. |
| BAR | Spectre Bar 2 | Spectre Bar 2 | Spectre Bar 2 |
| 3D FIT TECHNOLOGY | The integrated Ergo_Pad protects the spine from injuries and excessive impacts. | Two exchangeable Ergo_Pads protecting the spine from heavy impacts and injuries. Available in intermediate sizes to optimally accommodate all back lengths. | The integrated Ergo_Pad protects the spine from injuries and excessive impacts. |
| EXTRA SAFETY | Kite Knife Multitool 2.0 including double bit with TX 20 and PH3 | Kite Knife Multitool 2.0 including double bit with TX 20 and PH3 | Kite Knife Multitool 2.0 including double bit with TX 20 and PH3 |
| WEIGHT DRY (Size M with Spreader bar) | 1650 g | 1750 g | 1550 g |
| PRICE | ££££££ | ££££ | £££ |
| ATHLETE'S FAVOURITE | Lasse Walker | Andrea Principi | Edgar Ulrich, Matchu Lopes |

Hybrid Shell Harnesses
ION’s Hybrid Shell Harnesses combine the best of both worlds — the rigid back support of our Curv spine technology with the flexibility and comfort of a soft-shell design. This innovative hybrid construction delivers the ideal balance of structure, freedom of movement, and long-lasting comfort, making it the perfect choice for riders who want both performance and ease of use.
Construction
Each harness features a 3D-molded Curv spine, a proven material known for its lightweight durability and ergonomic support. The rigid center panel stabilizes your back and distributes load evenly, while softer side panels allow for unrestricted movement and a natural riding feel. This blend of stability and flexibility ensures comfort whether you’re carving waves or boosting high.
Weight & Materials
The harness includes elastic HD_Foam padding, providing a snug, adaptive fit that won’t absorb water. The result is a lightweight harness that maintains its performance and comfort — no matter how long you ride.
Fit & Support
To maximize back support and counterbalance the softer shell elements, all ION Hybrid Shell Harnesses feature a high-profile outline for enhanced stability. Each model also comes with an exchangeable Ergo_Pad, allowing you to choose between two pad thicknesses for customized lumbar support based on your individual spine curvature. This attention to ergonomic detail ensures a truly personalized fit and all-day comfort on the water.

Soft Shell Harnesses
ION Soft Shell Harnesses are designed for riders who value maximum comfort, flexibility, and freedom of movement. Featuring a snug yet forgiving construction, these harnesses provide an effortless fit that moves naturally with your body — eliminating pressure points and restriction. As the softest harnesses in the ION range, they’re ideal for both beginners and experienced riders who want a lightweight, comfortable feel for long sessions on the water.
Construction
Each Soft Shell Harness is built from fully molded EVA foam, offering reliable back support while maintaining a high level of flexibility. This intelligent design adapts to your body’s shape, ensuring consistent comfort and even load distribution during every ride.
Weight & Materials
With a lightweight construction and a clever blend of materials, ION’s Soft Shell Harnesses deliver performance without bulk. The elastic HD_Foam interior provides a soft, cushioned fit that won’t absorb water — keeping the harness light, dry, and comfortable throughout your session.
Fit & Comfort
The 3D-molded soft shell design ensures a secure, body-hugging fit that offers total freedom and flexibility. Whether you’re learning the basics or pushing your progression, the ION Soft Shell Harness guarantees ultimate comfort without compromise, allowing you to focus fully on your ride.
ION WINDSURFING WAIST HARNESS
At ION, our windsurf harness collection offers something for every rider, with options ranging from waist harnesses to seat harnesses. The first choice is between these two styles: waist harnesses for dynamic freedom and advanced performance, or seat harnesses for added support and comfort.Within our waist harnesses, you’ll find a variety of shell constructions, each designed to cater to different riding preferences. Explore our guide below to learn more and find the perfect harness for you.


Fully Curv Construction — Hard Shell Harnesses
Experience ultimate control and support with ION’s Fully Curv Construction Hard Shell Harnesses. Designed for riders who demand precision and power, these waist harnesses deliver rigid back support for optimal load distribution and enhanced stability during big airs, powered moves, and extended sessions. The result is a harness that feels secure, responsive, and built to perform at the highest level.
Construction
The Curv Harness Range features a 3D-engineered PLUS_Spine design that reinforces the back panel for superior ergonomic support. This innovative structure ensures maximum stability under load while maintaining comfort and freedom of movement. Every detail has been fine-tuned to provide a harness that performs flawlessly in demanding conditions.
Weight & Materials
Built with lightweight Curv composite technology, these harnesses combine stiffness, strength, and minimal weight. The viscous elastic Hyper_Foam interior forms naturally to your body for an adaptive, cushioned fit that won’t absorb water — keeping the harness light and comfortable no matter how long you ride.
Fit & Comfort
Fit is everything when it comes to performance and protection. ION’s 3D Fit Technology delivers a contoured, body-hugging shape that ensures the harness moves with you — not against you. Intermediate sizing options and the exchangeable Ergo_Pad allow for personalized lumbar support tailored to your individual back curvature. When your harness fits perfectly, you’ll hardly notice it’s there — just pure freedom and control.

Hybrid Shell Harnesses
The ION Hybrid Shell Harness combines the best of both worlds — the rigid back support of a Curv spine with the flexibility and comfort of a soft-shell design. This innovative hybrid construction offers the perfect balance of support, freedom of movement, and all-day comfort, making it ideal for riders seeking a harness that performs in every condition without compromising feel.
Construction
Each hybrid harness features a 3D-molded Curv spine, providing proven ergonomic back support and excellent load distribution. The softer side panels add flexibility where it’s needed most, allowing the harness to move naturally with your body while maintaining a secure, supportive fit. The result is a lightweight design that delivers both structure and freedom in perfect harmony.
Weight & Materials
The Elastic HD_Foam lining ensures a comfortable, adaptive fit that conforms to your body’s shape without absorbing water. This keeps the harness light, dry, and comfortable throughout even the longest sessions.
Fit & Comfort
To balance flexibility with strong back support, all ION Hybrid Shell Harnesses feature a high-profile outline that stabilizes the lumbar region during powered riding. Each model includes an exchangeable Ergo_Pad, allowing you to choose between two pad thicknesses for customized spinal support that matches your individual back curvature. The result is a truly personalized fit, combining the comfort of a soft shell with the control of a hard shell — all in one versatile design.

Soft Shell Harnesses
The ION Soft Shell Harness range is built for riders who value maximum comfort, flexibility, and freedom of movement. As the softest option in the ION lineup, these harnesses deliver an effortlessly snug fit without pressure points or restriction. Perfect for both beginners and advanced riders, the soft shell design allows for a natural riding experience with full mobility and lasting comfort during long sessions on the water.
Construction
Each Soft Shell Harness is crafted from fully molded EVA foam, offering reliable back support and a smooth, cushioned feel. The soft construction adapts to your body’s contours, evenly distributing pressure and maintaining comfort throughout every movement. Despite its supple nature, the harness still provides the structure and support needed for confident, controlled riding.
Weight & Materials
Thanks to its lightweight build and clever mix of high-performance materials, the soft shell harness keeps weight to a minimum without sacrificing comfort. The inclusion of Elastic HD_Foam ensures a secure yet forgiving fit that won’t absorb water, keeping the harness light, dry, and comfortable no matter how long you’re on the water.
Fit & Comfort
The 3D-molded design delivers a body-hugging fit that moves seamlessly with you, providing ultimate comfort and unrestricted mobility. Whether you’re learning your first transitions or mastering advanced tricks, the ION Soft Shell Harness guarantees a smooth, unrestricted riding experience — offering pure comfort from start to finish.