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24.11\")","confidence":0.9,"citation":{"lineage_tier":"T1","artefact_id":"megababiesusa-com--britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base:quick:source:2:guide:artefact:46a933672ac155d2c6be190a146ed0b6c440fc6e9fb6baeb3b29164d45f72e7b","start":2283,"end":2370,"summary_id":null,"excerpt_id":null,"span_sha256":"320856a17a29ad84290d34123e4708276b252b06e4155cbe629d2e3f74d0ba89","source_locator":"characters 2283 to 2370 of the retained text"}},{"id":"01M563M0A60PDGTKK87NN59FW4","source_id":"megababiesusa-com--britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base:quick:source:2:guide","field":"harness fit range","ordinal":8,"value_number":null,"unit":null,"value_text":"Harness slots sit at four heights from 5.5 in to 11.5 in, and the buckle strap adjusts between 2.25 in and 5.5 in.","original_value":"Harness Slot Heights: 13.97 cm, 9.05 cm, 24.14 cm, 29.21 cm (5.5\", 7.5\", 9.5\", 11.5\")","confidence":0.9,"citation":{"lineage_tier":"T1","artefact_id":"megababiesusa-com--britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base:quick:source:2:guide:artefact:46a933672ac155d2c6be190a146ed0b6c440fc6e9fb6baeb3b29164d45f72e7b","start":2371,"end":2456,"summary_id":null,"excerpt_id":null,"span_sha256":"a4723552efb2cd7e0a619bb1b5da77fd3e0812684e2f3b5e9b676b7aa8022d14","source_locator":"characters 2371 to 2456 of the retained text"}},{"id":"01M563M0MHAE89JE1T79CH8Z3F","source_id":"megababiesusa-com--britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base:quick:source:2:guide","field":"seat interior size","ordinal":9,"value_number":null,"unit":null,"value_text":"Britax Canada lists the Prism seat area depth as 26.5 cm (10.43 inches).","original_value":"Seat Area Depth: 26.5 cm (10.43\")","confidence":0.9,"citation":{"lineage_tier":"T1","artefact_id":"megababiesusa-com--britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base:quick:source:2:guide:artefact:46a933672ac155d2c6be190a146ed0b6c440fc6e9fb6baeb3b29164d45f72e7b","start":1880,"end":1913,"summary_id":null,"excerpt_id":null,"span_sha256":"9b727b84bd929e49ddf338984b2d707f345d867df0ee79883d89b210eb669472","source_locator":"characters 1880 to 1913 of the retained text"}},{"id":"01M563M0YTF7Y6RVQSVWPXQXM3","source_id":"megababiesusa-com--britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base:quick:source:2:guide","field":"what kind of stroller it is","ordinal":10,"value_number":null,"unit":null,"value_text":"The Prism is a modular full-size stroller that takes the infant car seat from birth and switches to a parent- or forward-facing toddler seat later.","original_value":"The Prism modular stroller makes it easy to stroll your way with parent-facing and forward-facing infant car seat and toddler modes.","confidence":0.9,"citation":{"lineage_tier":"T1","artefact_id":"megababiesusa-com--britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base:quick:source:2:guide:artefact:46a933672ac155d2c6be190a146ed0b6c440fc6e9fb6baeb3b29164d45f72e7b","start":696,"end":828,"summary_id":null,"excerpt_id":null,"span_sha256":"8df333556e1396ef62ce3d9baf3c2cdc4fbbe43f50e9ac16e8be7e608313d8fe","source_locator":"characters 696 to 828 of the retained text"}}],"facet_texts":[],"gaps":[{"id":"01M563M1NCEA4E48G88X1QQ56B","source_type":"facets","url":null,"reason":"embeddings skipped in the deep lane","detail":"the deep lane makes no embedding call; this pack has no facet texts and no vectors","recorded_at":"2026-10-17T23:25:10.185Z"},{"id":"01M563M20MEBNM0BWK26EV6D47","source_type":"guide","url":"https://top-stroll.myshopify.com/products/britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base","reason":"not_found","detail":"Left out: \"Britax states the Willow S infant car seat is verified by the Baby Safety Alliance.\" (third-party verification). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-17T23:25:10.185Z"},{"id":"01M563M2BNRGR6M6P6J55V93VA","source_type":"guide","url":"https://top-stroll.myshopify.com/products/britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base","reason":"not_found","detail":"Left out: \"The Alpine base uses ClickTight, which tightens and locks the vehicle seat belt itself, with an indicator window to confirm.\" (base installation). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-17T23:25:10.185Z"},{"id":"01M563M2NX9DC1KBJT9NGP5ZFY","source_type":"guide","url":"https://top-stroll.myshopify.com/products/britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base","reason":"not_found","detail":"Left out: \"There is an extra belt path on the back of the seat for installing it without the base.\" (installing without the base). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-17T23:25:10.185Z"},{"id":"01M563M306A0A7MEB9ZSYC33H3","source_type":"guide","url":"https://top-stroll.myshopify.com/products/britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base","reason":"not_found","detail":"Left out: \"The handlebar adjusts through four heights, the toddler seat reclines to four positions with one hand, the calf rest has three positions and the harness needs no rethreading.\" (adjustability). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-17T23:25:10.185Z"},{"id":"01M563M3CG6T3BMJWCYSKPGMZA","source_type":"guide","url":"https://top-stroll.myshopify.com/products/britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base","reason":"not_found","detail":"Left out: \"The tyres are no-flat, the front wheels swivel and all wheels have suspension.\" (wheels). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-17T23:25:10.185Z"},{"id":"01M563M3QFCKZRACNP04NS55E4","source_type":"guide","url":"https://top-stroll.myshopify.com/products/britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base","reason":"not_found","detail":"Left out: \"The fabrics are knit and melange in monotone colourways, with leatherette wrapping on the stroller handlebar.\" (materials and finish). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-17T23:25:10.185Z"},{"id":"01M563M41T924R25JNY1P0X8Z3","source_type":"guide","url":"https://top-stroll.myshopify.com/products/britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base","reason":"not_found","detail":"Left out: \"The foot brake sets with a single tap and has an indicator window showing when it is engaged.\" (brake). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-17T23:25:10.185Z"}],"facet_check":null,"evidence_depth":{"note":"Deep read: the store's own data and 8 outside pages (the store's own product page; maker page; manual; other; regulator recall search (CPSC (United States)); regulator recall search (Health Canada); official safety test results (CREP, the Child Restraint Evaluation Program); official safety test results (NHTSA's Car Seat Ease of Use Ratings)), each read in full by RoboTrunk and trimmed to its main content, then written up and checked. Facts from the maker or a manual quote the page word for word; what real users report is summarised with a link to the page read. Recall status was checked directly with CPSC (United States), Health Canada: The CPSC recall search returned no records for this travel system. The Health Canada open data holds 23 Britax records, but none names the Prism travel system, the Willow S or the Alpine base, so no recall is known to apply to this model. Official safety test results were looked up directly with CREP, the Child Restraint Evaluation Program, NHTSA's Car Seat Ease of Use Ratings: NHTSA's Car Seat Ease of Use Ratings (United States): The Willow S infant car seat supplied in this system, model E1C993XDI made 2024-07-08, is listed in its rear-facing mode with an overall 4 of 5 stars, 3 of 5 for securing the child, 5 of 5 for labels, 5 of 5 for vehicle installation features and 3 of 5 for instructions. These are ease-of-use ratings, not crash-test results, and the Prism stroller itself is not covered by this programme. CREP, the Child Restraint Evaluation Program (Australia and New Zealand): CREP's published list of 216 rated seats contains no Prism, Willow S or Alpine base. Its Britax entries are Australian Britax Safe-N-Sound seats such as the B-Compaq iFix and Quick Fix, and the programme states its list is every seat it has rated, so this product has not been rated by CREP. Not read, because they are member-only or refused RoboTrunk: Consumer Reports car seat ratings, Which? child car seat tests, Which? pushchair tests, CHOICE pram and stroller tests, Stiftung Warentest pram and buggy tests, JPMA certified products. Still open, with no evidence found: How long is the warranty and what does it cover?; Does the leatherette handlebar wrap or the frame paint wear or rub off over time?; How thick and soft are the stroller and car seat fabrics in the hand?; Will the folded stroller fit in a small car boot or behind the third row?; Which other-brand infant car seats fit the Prism adapters?; Does the stroller stand folded with the toddler seat still attached?; What is the Willow S car seat's expiry date or useful life?; Are canopies, inserts and wheels sold separately as spare parts?; Does the Willow S fit Britax strollers other than the Prism?; How much assembly is needed out of the box and which tools are required?.","tier":"complex","depth":"trimmed_read","model":"deepseek-flash","recall":{"note":"The CPSC recall search returned no records for this travel system. The Health Canada open data holds 23 Britax records, but none names the Prism travel system, the Willow S or the Alpine base, so no recall is known to apply to this model.","status":"no_recall_found","regulators_asked":["CPSC (United States)","Health Canada"]},"sources":[{"url":"https://top-stroll.myshopify.com/products.json","role":"the store's own data","retained":true},{"url":"https://top-stroll.myshopify.com/products/britax-prism-full-size-travel-system-with-willow-s-infant-car-seat-and-alpine-base","role":"the store's own product page","retained":true},{"url":"https://www.britax.ca/prism-travel-system","role":"maker page","retained":true},{"url":"https://www.britax.ca/guides-dutilisation-et-videos","role":"manual","retained":true},{"url":"https://us.britax.com/support/faq/travel-systems","role":"other","retained":true},{"url":"https://www.saferproducts.gov/RestWebServices/Recall?format=json&Manufacturer=Britax","role":"regulator recall search (CPSC (United States))","retained":true},{"url":"https://recalls-rappels.canada.ca/sites/default/files/opendata-donneesouvertes/HCRSAMOpenData.json","role":"regulator recall search (Health Canada)","retained":true},{"url":"https://www.childcarseats.com.au/api/v1/child_car_seats/filter_data/retrieve?_format=json","role":"official safety test results (CREP, the Child Restraint Evaluation Program)","retained":true},{"url":"https://api.nhtsa.gov/childSeats?dataSet=ratings","role":"official safety test results (NHTSA's Car Seat Ease of Use Ratings)","retained":true}],"reasoning":"low","embeddings":"skipped in the deep lane: no embedding call is made here","safety_tests":{"asked":["CREP, the Child Restraint Evaluation Program","NHTSA's Car Seat Ease of Use Ratings"],"walled":[{"reason":"Consumer Reports' car seat ratings pages declare themselves not free to read (isAccessibleForFree false, read 25-Sep-2026); RoboTrunk never reads past a paywall.","programme":"Consumer Reports car seat ratings"},{"reason":"Which? shows its child car seat test results to members only (read 25-Sep-2026); RoboTrunk never reads past a membership wall.","programme":"Which? child car seat tests"},{"reason":"Which? shows its pushchair test results to members only (read 25-Sep-2026); RoboTrunk never reads past a membership wall.","programme":"Which? pushchair tests"},{"reason":"CHOICE shows its pram test scores to members only (\"Join to compare\", read 25-Sep-2026); RoboTrunk never reads past a membership wall.","programme":"CHOICE pram and stroller tests"},{"reason":"Stiftung Warentest's buggy test results are paid content (\"freischalten\", read 25-Sep-2026); RoboTrunk never reads past a paywall.","programme":"Stiftung Warentest pram and buggy tests"},{"reason":"JPMA's certified products list refused RoboTrunk's named fetcher (HTTP 403, 25-Sep-2026). It is not retried under another identity.","programme":"JPMA certified products"}],"results":[{"status":"tested_this_model","summary":"The Willow S infant car seat supplied in this system, model E1C993XDI made 2024-07-08, is listed in its rear-facing mode with an overall 4 of 5 stars, 3 of 5 for securing the child, 5 of 5 for labels, 5 of 5 for vehicle installation features and 3 of 5 for instructions. These are ease-of-use ratings, not crash-test results, and the Prism stroller itself is not covered by this programme.","programme":"NHTSA's Car Seat Ease of Use Ratings (United States)","source_url":"https://api.nhtsa.gov/childSeats?dataSet=ratings"},{"status":"not_tested","summary":"CREP's published list of 216 rated seats contains no Prism, Willow S or Alpine base. Its Britax entries are Australian Britax Safe-N-Sound seats such as the B-Compaq iFix and Quick Fix, and the programme states its list is every seat it has rated, so this product has not been rated by CREP.","programme":"CREP, the Child Restraint Evaluation Program (Australia and New Zealand)","source_url":"https://www.childcarseats.com.au/api/v1/child_car_seats/filter_data/retrieve?_format=json"}]},"searched_for":["maker_page","manual","recall_notices","owner_reviews","blogs","forums","video_reviews"],"open_questions":["How long is the warranty and what does it cover?","Does the leatherette handlebar wrap or the frame paint wear or rub off over time?","How thick and soft are the stroller and car seat fabrics in the hand?","Will the folded stroller fit in a small car boot or behind the third row?","Which other-brand infant car seats fit the Prism adapters?","Does the stroller stand folded with the toddler seat still attached?","What is the Willow S car seat's expiry date or useful life?","Are canopies, inserts and wheels sold separately as spare parts?","Does the Willow S fit Britax strollers other than the Prism?","How much assembly is needed out of the box and which tools are required?"]}}