Diono Solana 2 XL Backless Booster Seat

Our score 9.83 / 10

Research by Peter Crona Last updated Last checked Method How we research

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From 38 in, up to 63 in (~5 years and up).

Diono Solana 2 XL Backless Booster Seat

Pros

  • The XL backless shape gives bigger booster-age children more seating room while staying easy to transfer.
  • Dual LATCH/UAS connectors help keep the empty booster from sliding around when allowed by the vehicle setup.

Cons

  • Backless use still requires vehicle head support and careful lap-and-shoulder belt fit.
  • It should not be used as an early move out of a harnessed seat.
Seat Use
Booster
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Diono Solana 2 XL is the backless booster to compare when a bigger booster-age child needs more seat room but still benefits from a portable belt-positioning seat. The XL shape and dual cup holders make more sense for school-age daily use than for a just-transitioned child who still needs harness support or the structure of a high-back booster.

Use the manual limits as the first gate, then test the vehicle fit. A backless booster still depends on head restraint, lap-belt position, shoulder-belt routing, and the child’s ability to stay upright for the full trip. The LATCH/UAS connectors can help keep the empty booster in place where the vehicle allows it, but they do not replace belt-fit checks.