# Booster car seats for older or taller children Which booster car seats still fit an older or taller child? Diono Solana 2: Few backless boosters are rated beyond 57 in, so the Solana 2's taller height limit makes it useful for older, taller children who still fail the five\-step belt test\. The reviewer lists a 40\-120 lb weight range, a height limit of up to 63 in, and an 8\-year expiration at the top of the page, but later states the manual lists a 6\-year expiration, so the expiry should be confirmed in the seat's own manual\. PEG / Peg Perego Primo Viaggio Flex 120: It is one of the tallest boosters on the market; the highest belt guide is 22 inches, with a 63\-inch height limit and 120\-pound weight limit, and no vehicle head restraint is needed\. The booster appears very tall; a 14\-year\-old, 62\-inch, 105\-pound child fit under the top belt guide\. The page says it measured only 19 inches when fully extended and may not fit bigger kids\. Maxi\-Cosi Tanza: The Tanza is designed for children weighing 40–100 lb and measuring 43\.4–57 in tall\. Diono Monterey 5 iST FixSafe: A 56\-inch, 90\-pound child barely fit at maximum height\. The review considered the high\-back\-only design and shorter top belt\-guide position disappointing for long\-torsoed or larger children\. ### 1. [Diono Solana 2](/products/ucp/megababiesusa-com/5508138893465) (sold by megababiesusa\.com) Few backless boosters are rated beyond 57 in, so the Solana 2's taller height limit makes it useful for older, taller children who still fail the five\-step belt test\. - Height limit: The reviewer lists a 40\-120 lb weight range, a height limit of up to 63 in, and an 8\-year expiration at the top of the page, but later states the manual lists a 6\-year expiration, so the expiry should be confirmed in the seat's own manual\. (review) - Weight limit: The seat is rated for children from 40 to 120 lb\. (listing) - Taller or older child fit: Few backless boosters are rated beyond 57 in, so the Solana 2's taller height limit makes it useful for older, taller children who still fail the five\-step belt test\. (review) ### 2. [PEG / Peg Perego Primo Viaggio Flex 120](/products/ucp/strolleria-com/3782284247114) (sold by strolleria\.com) It is one of the tallest boosters on the market; the highest belt guide is 22 inches, with a 63\-inch height limit and 120\-pound weight limit, and no vehicle head restraint is needed\. - Height limit: It is one of the tallest boosters on the market; the highest belt guide is 22 inches, with a 63\-inch height limit and 120\-pound weight limit, and no vehicle head restraint is needed\. (blog) - Weight limit: It is one of the tallest boosters on the market; the highest belt guide is 22 inches, with a 63\-inch height limit and 120\-pound weight limit, and no vehicle head restraint is needed\. (blog) - Taller or older child fit: The booster appears very tall; a 14\-year\-old, 62\-inch, 105\-pound child fit under the top belt guide\. (review) ### 3. [Maxi\-Cosi Tanza](/products/ucp/maxicosi-com/7934613913654) (sold by maxicosi\.com) The Tanza is designed for children weighing 40–100 lb and measuring 43\.4–57 in tall\. - Height limit: The Tanza is designed for children weighing 40–100 lb and measuring 43\.4–57 in tall\. (guide) - Weight limit: The Tanza is designed for children weighing 40–100 lb and measuring 43\.4–57 in tall\. (guide) - Taller or older child fit: - ### 4. [Diono Monterey 5 iST FixSafe](/products/ucp/anbbaby-com/6567365279830) (sold by anbbaby\.com) A 56\-inch, 90\-pound child barely fit at maximum height\. The review considered the high\-back\-only design and shorter top belt\-guide position disappointing for long\-torsoed or larger children\. - Height limit: - - Weight limit: - - Taller or older child fit: A 56\-inch, 90\-pound child barely fit at maximum height\. The review considered the high\-back\-only design and shorter top belt\-guide position disappointing for long\-torsoed or larger children\. (review) ## Also cited in the text - PEG / Peg Perego Primo Viaggio Flex 120, height: The page says it measured only 19 inches when fully extended and may not fit bigger kids\. (review) Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-28T06:27:04.658Z. This page is published by RoboTrunk, a store built for shopping agents. 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