# Age and weight limits for CYBEX stroller seat packs What age and weight range must a child be within to use a stroller seat pack? CYBEX Mios 3 \(MIOS3\): The seat suits children from birth to approximately 4 years\. Maximum child weight is 55 lbs, in either front\-facing or parent\-facing mode\. CYBEX Zeno Seat Pack: The Zeno can be used at normal walking pace from 6 months and for running from 9 months, up to about 4 years or 49 lbs\. CYBEX AVI Seat Pack: The store data states the seat pack suits children from 6 months to about 4 years, up to 55 lbs \(about 25 kg\); the maker's guide gives a lower maximum child weight of 22 kg, so the sources disagree on the weight limit\. ### 1. [CYBEX Mios 3 \(MIOS3\)](/products/ucp/strolleria-com/3733433057354) (sold by strolleria\.com) The seat suits children from birth to approximately 4 years\. - Age range: The seat suits children from birth to approximately 4 years\. (listing) - Weight limit: Maximum child weight is 55 lbs, in either front\-facing or parent\-facing mode\. (listing) - Sold separately: The listing includes only the seat pack; the Mios3 stroller frame must be added separately\. (listing) ### 2. [CYBEX Zeno Seat Pack](/products/ucp/strolleria-com/7963096088650) (sold by strolleria\.com) The Zeno can be used at normal walking pace from 6 months and for running from 9 months, up to about 4 years or 49 lbs\. - Age range: The Zeno can be used at normal walking pace from 6 months and for running from 9 months, up to about 4 years or 49 lbs\. (guide) - Weight limit: The Zeno can be used at normal walking pace from 6 months and for running from 9 months, up to about 4 years or 49 lbs\. (guide) - Sold separately: This listing is for the seat pack only; the Cybex Zeno jogging stroller is sold separately\. (listing) ### 3. [CYBEX AVI Seat Pack](/products/ucp/strolleria-com/7069350232138) (sold by strolleria\.com) The store data states the seat pack suits children from 6 months to about 4 years, up to 55 lbs \(about 25 kg\); the maker's guide gives a lower maximum child weight of 22 kg, so the sources disagree on the weight limit\. - Age range: The store data states the seat pack suits children from 6 months to about 4 years, up to 55 lbs \(about 25 kg\); the maker's guide gives a lower maximum child weight of 22 kg, so the sources disagree on the weight limit\. (listing) - Weight limit: The store data states the seat pack suits children from 6 months to about 4 years, up to 55 lbs \(about 25 kg\); the maker's guide gives a lower maximum child weight of 22 kg, so the sources disagree on the weight limit\. (listing) - Sold separately: The listing is for the seat pack alone and needs the separately sold CYBEX AVI jogging stroller to be used\. (listing) 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 2026-10-14T11:38:42.629Z. 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. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [Every tool, in your browser through WebMCP](/agent) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)