# Thule Sleek 2 Sibling Seat \| live price, prepared checkout ## Built for shopping agents: what RoboTrunk does for every product We asked shopping agents, including Meta's Muse first-hand, what they need from a store. This is what they asked for, and what we have built. RoboTrunk is working through its catalogue, so a step may not be done for this one yet. Where a step is done per product, the line ends with what is done for this product. - **Deep research:** We read the maker's manual, independent reviews, video review transcripts and the store's own page, and publish each finding with its source and the date read. `check_product` returns them with a source for each. *This product:* 25 checked facts, research depth trimmed read, checked 2026-10-16T09:07:04.173Z, in the [evidence pack](/agent/evidence/strolleria-com--thule-sleek-2-sibling-seat). - **Receipts:** Every published fact has a receipt showing its source quote. `check_product` and `get_product` return the checked facts that have one. *This product:* each checked fact listed below has one; the source quotes are in the [evidence pack](/agent/evidence/strolleria-com--thule-sleek-2-sibling-seat). - **Safety:** `check_product` asks the product-safety regulators live (US CPSC, NHTSA and FDA, Health Canada, the UK's OPSS, Australia's ACCC) whether a recall names a product, listed here or not, and flags a match with its notice; a recall never blocks the buyer. *This product:* this page holds no recall result for it yet; `check_product` asks the regulators now. - **Recall watch:** `watch_recalls` tells the buyer if a product bought here is recalled later. - **Second-hand listings:** `check_listing` runs the same recall check on a second-hand listing someone found, and adds what the listing leaves out and the price new. - **The real price:** The full price to the buyer's country, with shipping and tax, each part quoted from the store's policy or, where a part is not settled, what the total depends on: `check_product` and `search_catalog` take the buyer's country and postcode. *This product:* this store's price was read from its catalogue at 2026-10-23T19:42:03.030Z. - **A checkout that finishes:** RoboTrunk lists only stores whose agent checkout it has verified. `create_checkout` prepares the order at the store; `complete_checkout` returns a link to the store's own checkout. The checkout can be finished in either of two ways: the person taps the link in their own browser, or their agent opens it and completes the checkout. RoboTrunk checks the store's total against a budget ceiling before it issues the link. Payment always happens on the store's own page, and RoboTrunk never holds the money. No store pays for placement; RoboTrunk may earn a commission from some stores via their affiliate programs. - **Markdown copy:** Every page has a Markdown copy: [this page's copy](https://robotrunk.com/products/ucp/strolleria-com/8106152230986.md). - **Photos and ratings:** Search results carry the product photo and, where the store's own page publishes one, its rating (`search_catalog`). - **Fit answers:** `check_fit` answers whether a listing fits a car, pram or bottle, with the exact quote from the store's page, or says it is not known. - **Back-in-stock watches:** `watch_back_in_stock` starts a watch on a listing the store shows as sold out; `get_back_in_stock_watch` shows when it is back in stock. - **Maker's manual:** `ask_product_manual` answers from the maker's manual with the exact passage and page, or says the manual does not cover it. - **Tools and guide:** Every tool and its description is at https://robotrunk.com/mcp; the guide is at [/agents\.md](/agents.md). - **Research from other stores:** Coming soon: reading other stores' listings of the same product as new research sources. Sold and shipped by strolleria\.com, strolleria.com; payment happens on the store's own checkout. Brand: Thule ## Variants - Black: USD 349.95; in stock. Variant id: `gid://shopify/ProductVariant/43228224127050` - Seller: strolleria\.com. Price: USD 349\.95. Stock: in stock. Variant: Black, variant id `gid://shopify/ProductVariant/43228224127050`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://strolleria.myshopify.com/products/thule-sleek-2-sibling-seat). [Get ready to buy from strolleria\.com: prepare checkout](/checkout-prepare?merchant=strolleria-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F8106152230986&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F43228224127050). - Tinted Taupe On Black: USD 349.95; in stock. Variant id: `gid://shopify/ProductVariant/43228224159818` - Seller: strolleria\.com. Price: USD 349\.95. Stock: in stock. Variant: Tinted Taupe On Black, variant id `gid://shopify/ProductVariant/43228224159818`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://strolleria.myshopify.com/products/thule-sleek-2-sibling-seat). [Get ready to buy from strolleria\.com: prepare checkout](/checkout-prepare?merchant=strolleria-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F8106152230986&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F43228224159818). ## Checked facts Each fact below was checked against the source it cites before it was published. Each carries that source's link and the time RoboTrunk read it. 25 checked facts, checked 2026-10-16T09:07:04.173Z. Research depth: trimmed read. Deep read: the store's own data and 5 outside pages \(the store's own product page; maker page; manual; regulator recall search \(CPSC \(United States\)\); regulator recall search \(Health Canada\)\), 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: CPSC search returned one recall, for Chariot Carriers child bicycle trailers and conversion kits, not this product\. Health Canada records mention recalls for Thule RideAlong bike seat, Thule Camber and Range hitch bike carriers, Thule Tepui rooftop tents, Thule Sleek strollers \(2020 fall hazard\), Thule Sleek Car Seat Adapter, and Thule roof\-mounted bike carriers; none is for the Thule Sleek 2 Sibling Seat\. - what it is: Transforms the everyday single stroller into a practical and comfortable single\-to\-double solution\.. Source: (listing), read 2026-10-15T19:46:36.141Z. - reviews: The store page shows no customer reviews\.. Source: (guide), read 2026-10-16T08:52:44.423Z. - what it is: The Thule Sleek 2 sibling seat transforms a Thule Sleek 2 single stroller into a double stroller for two children\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - safety standards: Manual lists EN 1888\-2:2018\+A1:2022 and ASTM F833\-21\.. Source: (manual), read 2026-10-16T08:52:49.397Z. - features: Features multiple recline options, adjustable footrest, and magnetic buckle\.. Source: (listing), read 2026-10-15T19:46:36.141Z. - SKU: Store page SKU is 11000218\.. Source: (guide), read 2026-10-16T08:52:44.423Z. - compatibility: It is compatible with the Thule Sleek 2 stroller\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - weight limits: Manual shows configuration weight limits such as 13 kg \+ 22 kg / 29 lbs \+ 49 lbs\.. Source: (manual), read 2026-10-16T08:52:49.397Z. - dimensions: Retail listing dimensions are 32\.7 x 17\.1 x 43\.5 in\.. Source: (listing), read 2026-10-15T19:46:36.141Z. - what's included: Includes a reversible seat with bumper bar\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - height and age limits: Manual shows height and age limits of 101 cm / 40 inches and 6m\-4y\.. Source: (manual), read 2026-10-16T08:52:49.397Z. - GTIN: GTIN for the Black variant is 197074667243\.. Source: (listing), read 2026-10-15T19:46:36.141Z. - what's included: Includes Thule Sleek adapter kit\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - GTIN: GTIN for the Tinted Taupe On Black variant is 197074667250\.. Source: (listing), read 2026-10-15T19:46:36.141Z. - what's included: Includes upper and lower adapters for sibling mode and growing\-family configurations\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - features: Seat has an extendable canopy, multiple recline, adjustable leg rest, magnetic harness, and swing\-away bumper bar\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - comfort: Sibling seat mirrors the main seat with full protection, recline options, magnetic buckle, and adjustable footrest\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - combinations: Can be combined with a car seat, bassinet, rider board, or main seat\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - materials: Made from steel, aluminium, plastic parts and solution dyed polyester fabrics\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - dimensions: Maker\-listed dimensions are 25\.5 x 10 x 83 cm\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - weight: Maker\-listed product weight is 3\.1 kg\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - model number: Model number is 11000218\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - country of origin: Country of origin is Poland\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - colour: Listed colour is Black on black; another colour is Tinted Taupe on Black\.. Source: (guide), read 2026-10-16T08:52:45.449Z. - returns: Maker offers 30\-day returns\.. Source: (guide), read 2026-10-16T08:52:45.449Z. The full evidence pack, with every citation, source and gap: [evidence pack](/agent/evidence/strolleria-com--thule-sleek-2-sibling-seat) ## Questions we researched but could not confirm Every fact above is cited. To find them we read the store listing, the maker's page, the manual and the recall records of CPSC \(United States\) and Health Canada and searched for regulator recall notices, owner reviews, blogs, owner forums and video reviews. We also chased the questions below across those sources and found no reliable answer, so you know exactly where the evidence ends and never have to guess. - How does the fabric feel to the touch? - Is the seat fabric thick or thin? - Does the coating or paint rub off with use? - Does the sibling seat rub or stick out against the stroller? - What tools are needed to attach the sibling seat? - How long does installation take? - What is the warranty period and what does it cover? - What part tends to break first with heavy use? - Does the canopy offer UV protection? - Is the seat padding breathable in hot weather? - Are replacement fabrics or spare parts sold separately? - Can the stroller fold with the sibling seat attached? - What is the maximum weight for the sibling seat alone? To buy this through RoboTrunk, pass merchant `strolleria-com`, product_id `gid://shopify/Product/8106152230986` and one variant_id from the list above. Product image of Thule Sleek 2 Sibling Seat, supplied by strolleria\.com: This product on strolleria.com: Retrieved 2026-10-23T19:42:03.030Z from This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. 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