Genesys Deluxe i-Size
Harnessed Booster Car Seat
For children from 76 – 150 cm tall (15 months to 12 years old)
Give your child the protection they deserve with the Harmony Genesys iSize Deluxe, engineered to meet ECE R129 safety standards for children 76-105 cm with a harness and 100 – 150 cm as a high-back booster. Whether used with or without the harness, this seat provides full-body impact protection, EPE energy-absorbing foam, and a contoured Seat Saver design for a secure and stylish ride.
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Seamlessly transitioning from a harnessed seat to a high-back booster, the Harmony Genesys iSize Deluxe adapts as your child grows, delivering long-term value without compromising on safety or comfort.
A one-hand adjustable headrest and no re-thread harness height adjustment make customization effortless, while the ultra-plush, machine-washable seat pad ensures every ride is as comfortable as it is easy to maintain.
Safety, comfort, and modern design—because your child deserves the best every step of the way.
Product Features
- Suitable for children between 76 and 150cm tall
- Suitable for children approximately 15 months to 12 years of age
- Seat attachment method: ISOFIX and top tether
- ECE R129 and i-Size certified
- Side impact protection – helps to absorb the force of a side on collision
- Integrated 5-point harness system easily converts to a booster seat
- One pull harness adjustment
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- EPE energy-absorbing foam throughout seat
- Plush infant insert cushions (head & body) included
- No rethread, 8-position, 1-hand headrest height adjustment
- Removable and machine washable premium seat cover
- 2-year warranty
Specifications | How-to & Support | Available at 
Safety
The Genesys Deluxe Harnessed Booster Seat is certified to ECE R44 safety standards and designed with full-body side impact protection. Its deep, supportive backrest helps provide a secure, comfortable fit, supporting your child throughout their journey.
Comfort
Plush microsuede fabrics with comfort foam provide a cozy and luxurious feel, while the deep cushioned insert supports your child on every ride. The 8-position, one-hand adjustable headrest adapts as they grow, ensuring a perfect fit without rethreading.
Ease-of-Use
The Genesys Deluxe makes installation and adjustments effortless. With an up-front, one-hand harness adjuster and clearly marked belt guides, transitioning from a 5-point harness to a belt-positioning booster is quick and simple. Designed with busy parents in mind, this seat grows with your child—without the hassle.
Additional features
Ultra-plush seat cover made with premium fabrics
Head and body insert cushions
Removable & machine washable premium seat covers
Isofix
Top Tether
Specifications
Net weight: 8.3 kg (18.3 lbs.)
Gross weight: 9.8 kg (21.61 lbs.)
How-to & support
Replacement parts
Head and body insert cushions
Harness shoulder and crotch pads
Fabric seat covers
Isofix insert guides