Thule Palm High-Back Booster Seat: Full Review

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Written by
Integrated MA, Certified Relationship Coach

The Thule Palm high-back booster seat stands out as a premium choice for parents seeking a reliable transition seat for school-age children. Designed for kids measuring 100-150cm in height, this i-Size compliant model combines sleek Scandinavian design with practical features for everyday family travel.

Overview of Design and Build Quality

Thule, renowned for outdoor gear like roof boxes and bike carriers, has entered the child car seat market with the Palm, positioning it as part of a full car-seat lineup. The seat measures 45.6 x 44.8 x 62.6 cm and weighs just 7.14kg, making it portable for switching between vehicles. Its construction uses high-quality materials, including a PUR comfort-foam cushion that provides superior ergonomic support compared to standard foam in many competitors.

Available in Soft Beige, Mid Grey, and Black, the fabric resists stains effectively, even after prolonged use. Parents appreciate the machine-washable covers for easy maintenance during messy trips. The premium finish appeals to both adults and children, with a modern aesthetic that elevates the car’s interior.

Simple and Secure Installation Process

Installing the Thule Palm is straightforward, thanks to extendable ISOFIX anchor points on the base. These guides ensure a firm connection to the vehicle’s lower anchors. Once attached, the seat slides rearward to hug the car seatback closely, minimizing play.

While the backrest has slight movement before securing a child, this does not compromise stability once belted in. The forward-facing design complies with UN R129/3 standards, suitable for belted or ISOFIX fixation. This versatility suits various car models, including those with limited space.

  • ISOFIX extendable anchors for quick setup
  • Lightweight at 7.14kg for easy transfer
  • Secure nesting against vehicle seat
  • Compatible with 100-150cm child heights

Comfort Features for Long Journeys

Comfort defines the Thule Palm, with a large adjustable headrest and recline option that cradles the child’s head and neck. The thick PUR foam cushion—up to 3cm in key areas—offers better pressure distribution than thinner alternatives. Older children can independently buckle the vehicle’s three-point belt due to the open design and lap belt guides.

The optional footrest (£79.95 extra) enhances leg support, promoting circulation and reducing fatigue. Testers, including five-year-olds, reported no discomfort, with some napping comfortably—a key indicator of quality. Dimensions allow a slim 38cm width at the belt guide, though side-by-side fitting of three may challenge tighter cars.

FeatureDetailsBenefit
HeadrestLarge, adjustableSupports growing necks
CushionPUR foam, 3cm thickErgonomic comfort
ReclineMulti-positionReduces strain on trips
Footrest (optional)AttachableImproves circulation

Safety Certifications and Performance

Certified to i-Size (UN R129/3) standards, the Palm ensures side-impact protection through its high back and robust structure. The headrest’s cutout design adds rigidity, while belt guides position the lap belt correctly over the pelvis. Real-world testing shows it performs reliably without excessive wobble once occupied.

Thule emphasizes safety via comfort, arguing secure, happy children stay properly positioned. No independent crash test data beyond ECE standards is highlighted, but compliance with latest regulations provides baseline assurance.

Practicality in Everyday Use

For families with multiple vehicles, the Palm’s low weight simplifies swaps. Cleaning is hassle-free: wipe-down fabrics and removable, washable covers handle spills. The slim profile fits well in midsize sedans, though three-across setups require measuring vehicle space.

Children aged 4-10 (typically 100-150cm) transition easily from full harness seats, gaining independence with self-buckling. Videos demonstrate intuitive adjustments, reinforcing user-friendliness.

Price Analysis and Value Comparison

At £219.95, the Palm is pricier than Silver Cross or Maxi-Cosi equivalents but matches Nuna Aace LX. The optional footrest pushes total cost near £300. Value lies in durability, comfort, and Thule’s brand reputation for quality gear.

ModelPrice (£)Key FeaturesWeight (kg)
Thule Palm219.95PUR foam, recline, ISOFIX7.14
Nuna Aace LX~220Similar premium build~7.5
Silver Cross~150Basic high-back~6.5
Maxi-Cosi~180ISOFIX, slim fit~7.0

Pros outweigh cons for comfort-focused buyers, but budget shoppers may opt cheaper.

Pros and Cons Summary

  • Pros: Exceptional comfort, easy install, stain-resistant fabrics, lightweight, stylish design
  • Cons: High price, optional extras add cost, slight backrest play pre-install

Frequently Asked Questions (FAQs)

What age/height is the Thule Palm for?

Suitable for children 100-150cm tall, roughly 3.5-12 years, forward-facing only.

Does it use ISOFIX?

Yes, with extendable anchors; also supports vehicle belt installation.

Can it fit three across?

Possible in wider cars due to 38cm belt width, but test fit first.

Is the cover machine washable?

Yes, removable covers wash easily.

What’s the weight limit?

Height-based (150cm max); no upper weight specified, per i-Size.

Final Verdict

The Thule Palm earns high marks for bridging child seats to boosters seamlessly. Its comfort innovations justify the premium for discerning parents prioritizing long-trip ease and style. Ideal for 100-150cm kids in active families.

References

  1. Thule Palm high-back booster seat review — Auto Express. 2026-01-12. https://www.autoexpress.co.uk/product-reviews/368696/thule-palm-high-back-booster-seat-review
  2. Thule Palm Booster Seat — Thule Official Site. Accessed 2026. https://www.thule.com/en-gb/car-seats/booster-seats/thule-palm-booster-seat-_-14000025
  3. The Ultimate High-Back Booster: The Thule Palm Car Seat Review — YouTube (아이와차). 2026.
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