Jane Muum-4 Trio Koos Travel System

Lightweight Pram with i-Size Car Seat from Birth to 22kg

Introducing the Jané Muum-4 + Sweet Carrycot + Koos iSize R1 Travel System – a stylish and practical 3-in-1 pram bundle designed for seamless mobility from newborn to toddler.

The Jané Muum-4 Trio Travel System combines iconic design with everyday functionality. Built on a lightweight aviation aluminium chassis with hydrolytic PU tyres and advanced suspension, the Muum-4 offers smooth handling for busy streets, shopping trips and family days out.

The reversible seat unit reclines from 105° to 155°, making it suitable from birth up to 22kg (approx. 4 years). An extra-large extendable UPF50+ hood, raincover, coordinating seat liner and matching pram bag ensure comfort and practicality in all seasons.

For newborns, the Sweet Carrycot provides a spacious, breathable and eco-conscious environment made from 100% recycled fabrics and certified to EN1466:2023. Completing the trio, the Koos iSize R1 car seat (40–83 cm) delivers R129 i-Size compliant safety, with advanced side-impact protection and lightweight portability. An optional iPlatform Comfy reclining Isofix base is available for quicker, secure installation.

What’s Included

• Muum-4 Pushchair
• Extra-large extendable UV50+ hood
• Pushchair raincover
• Coordinating reversible seat liner
• Coordinating pram bag
• Sweet Carrycot (0–9kg)
• Ergonomic mattress with adjustable backrest
• Koos iSize R1 Car Seat (40–83 cm)
• Newborn insert (40–60 cm)

Optional: iPlatform Comfy Reclining Isofix Base

Video Demo - Jané Muum 4

Video Demo - Jané Sweet Carrycot

Product Highlights

• Lightweight aluminium chassis for easy manoeuvrability
• Reversible seat unit suitable up to 22kg
• Eco Sweet Carrycot certified to EN1466:2023
• Koos R1 i-Size car seat (R129 approved)
• Travel system ready with Pro-Fix attachment

Features & Benefits

• Eco leather adjustable handlebar (80–105 cm) offers seven height positions for tailored comfort.
• Reversible seat unit allows parent-facing or world-facing travel.
• Multi-position recline (105°–155°) supports comfort from newborn to toddler.
• Hydrolytic PU tyres with suspension ensure a smooth and durable ride.
• Magnetic 5-point harness makes securing your child quick and simple.
• UPF50+ extendable hood protects from sun exposure and light rain.
• Sweet Carrycot (birth to 9kg) provides a spacious, breathable and certified safe sleeping space.
• Koos iSize R1 (40–83 cm) delivers enhanced rearward-facing safety under R129 regulations.
• Side impact protection with memory foam headrest helps disperse collision forces.
• Dual installation options allow fitting with seat belt or optional Isofix base.

Specifications / Size & Fit

Muum-4 Pushchair

• Unfolded: 82–94 x 58 x 80–105 cm
• Folded: 70 x 58 x 29 cm
• Wheel diameters: Rear 29 cm | Front 19.5 cm
• Weight: Chassis 7.6 kg | Seat unit 3.9 kg
• Basket capacity: 4 kg / 18 litres
• Suitable up to 22 kg

Sweet Carrycot

• Unfolded: 82 x 46 x 62 cm
• Folded: 82 x 46 x 15 cm
• Weight: 4.3 kg
• Suitable: Birth to 9 kg
• Standard: EN1466:2023

Koos iSize R1 Car Seat

• Suitable: 40–83 cm (birth to approx. 18 months)
• Dimensions: 66 x 44 x 58 cm
• Weight: 3 kg
• Regulation: R129 i-Size

Compatibility

• it’s built in Pro-Fix system is compatible with Jané Koos R1 infant car seats and Sweet, Transporter or Micro Pro Carrycots
• Works with most other branded infant car seats when used with the Jané Universal Car Seat Adapter.
• Optional iPlatform Comfy Reclining Isofix Base compatible with Koos iSize R1 car seat

Ideal Uses

• Everyday errands and shopping
• Newborn pram mode from birth
• Car-to-pushchair transitions
• Long-term pushchair use up to 22kg

Standard Delivery
Our standard delivery is 5-7 working days unless stated otherwise.

We will always aim to deliver within this timeframe and will contact you if we are made aware of any delays that might extend delivery.

Please get in touch before placing your order via our contact form if you would like a more accurate delivery timescale and we will endeavour to provide you with this information.

Estimated Delivery
Whilst we always aim to deliver orders within the timescales advertised on our website we unfortunately cannot guarantee this.

All lead times stated on our website are estimated and show how long we normally expect deliveries to take.

Estimated Delivery times can be found on the Additional Information tab and will be confirmed on the shopping basket and also in your order confirmation email.

Due to all delivery timescales being estimated we kindly ask all customers to allow an extra 7 working days on top of the estimated dates.

In Stock
If an item shows as 'In Stock' it means that a product is in stock with ourselves or our brand partner has confirmed stock availability on their most recent stock report.

The estimated delivery time shows you how long we normally expect your items to take to arrive with you.

Please note that we cannot guarantee direct delivery lead times until availability is confirmed by our brand partners.

Available to Order
On products with this status we will show an estimated delivery time based on the information provided to us by our brand partners.

Please note that we are only able to provide estimated delivery timescales on these products so please bear this in mind if you require a product urgently.

We would recommend that you contact us prior to placing your order if you want to confirm stock availability and expected delivery dates.

Pre Order
This status means that a product is currently out of stock but our brand partners have provided us with an estimated date when we can expect more stock to arrive.

Any dates stated on pre-order products are estimates and we always keep you updated if these dates change.

Please note that standard delivery times still apply after our pre-order dates so you will need to add this on top of any pre-order dates.

Delivery Charges
We offer free delivery on orders over £49.95 to most of the UK.

The postage cost on orders under this amount is £6.95.

Please visit Delivery & Returns for more information