onBoard™ Slide 6-in-1 Travel System with onBoard™ Slide Infant Car Seat and SafetySlide™ Base
Source: Safety 1st · checked Oct 16, 2026
In stock
With six different strolling options for parents on the go, the Safety 1st onBoard™ Slide 6-in-1 Travel System with SafetySlide™ Base is the perfect lightweight car seat and stroller combo for your family. This travel system includes the onBoard™ Slide Infant Car Seat featuring SafetySlide™ Base. The innovative design of the car seat’s base makes it easier to get baby in and out of the car— even from the middle seat. Simply slide your baby toward you, lift, and go. No more back strain and head bumps. The SecureTech™ red-to-green indicators on the seat’s base allow you to see when your base is locked in place when using the SafetySlide™ feature. Plus, enjoy quick, easy installation every time without having to tighten the connectors manually—by easily attaching the base to the vehicle seat in just seconds with the rigid LATCH connectors. The modular stroller features 6 ways to stroll and can be used as an infant car seat carrier, lie-flat baby carriage, and toddler stroller—all 3 modes are reversible and can be parent-facing or forward-facing. This compact stroller fits children up to 50 lbs. and 45" and is super lightweight with an aluminum frame. The all-wheel suspension, adjustable footrest, and quilted seat provide a more comfortable ride for baby, while parents enjoy a one-hand telescoping handle with faux-leather trim and a removable bumper bar for easy in and out. The oversized canopy provides extra coverage and the mesh peek-a-boo window lets you get a quick look at your child. The easy-to-fold stroller folds flat with removable back wheels for compact storage and includes lockable front swivel wheels and linked brakes. Connecting the car seat to the stroller frame is easy, too. The ultra-lightweight car seat design at just under 8 lbs. makes it simple to carry. The 4 harness heights are designed to give your child a better fit from 4–30 lbs. and less than 32". The harness adjusts easily from the front of the seat with a simple pull to securely fit your child. The buckle adjusts in two ways so that you can customize the length and the buckle’s position on your child. Since every car is different, you can also adjust the base height for the right fit to your car. When using the vehicle belt, car seat installation is simplified with SecureTech™—Safety 1st’s innovative technology that solves the most common installation problem 7 out of 10 parents unknowingly have: loose vehicle belt tension. The red-to-green visual indicators show when the seat belt has tension. Your baby will be nice and comfortable relaxing in the soft fabrics and plush padding. Smaller babies get the extra support they need with head and body inserts that can be removed as they grow.
This versatile 6-in-1 travel system offers convenient middle-seat access with its sliding base and maintains a mid-range price point within the current market.
SafetySlide base technology
SecureTech installation indicators
Six-in-one modular design
Ultra-lightweight aluminum frame
Price
$539.99
Pricier than 23 of 38 similar car seats
$140$800
Median $500
Best for
Parents needing middle-seat access
Families seeking modular strolling
Users prioritizing lightweight gear
Worth knowing
Mid-priced option compared to similar systems
Supports children up to 50 pounds
Car seat accommodates children up to 32 pounds
Price & stock
Checked today
Compared with 38 similar car seats from 19 sellers on Shopify, using their listed prices, ratings and specs. The summary is AI-written from the listing and these numbers; confirm details with the seller.
Summarized from Shopify’s product catalog. Where Safety 1st states a different figure, we show Safety 1st’s.
Specifications
Color
Rocky Point
Seller description
Features
The Safety 1st onBoard™ Slide 6-in-1 Travel System with SafetySlide™ Base is the perfect lightweight car seat and stroller combo
Includes the onBoard™ Slide Infant Car Seat featuring SafetySlide™ Base––the innovative design of the base eases back strain and eliminates head bumps, making it easy to get baby in and out of the car—even from the middle seat
SafetySlide™ slides out a maximum of just under 8" on either side of your car (distance varies depending on the width of the vehicle’s back seat)
Quick, easy car seat installation without having to tighten the connectors manually—you can easily attach the base to the vehicle seat in just seconds with the rigid LATCH connectors
SecureTech™ red-to-green indicators on the car seat’s base allow you to see when your base is locked in place when using the SafetySlide™ feature
6 ways to stroll: infant car seat carrier, lie-flat baby carriage, and toddler stroller—all 3 modes are reversible and can be parent- or forward-facing
Stroller fits children up to 50 lbs. and 45"
Stroller features a lightweight aluminum frame
1-hand telescoping stroller handle that raises up and down with faux-leather trim
Adjustable stroller footrest for your growing little one
Removable bumper bar with faux-leather trim
All-wheel suspension for a smooth ride
Quilted toddler seat with plush fabric and detailed stitching
Oversized mesh peek-a-boo stroller window for added ventilation
Lockable front stroller swivel wheels and linked brakes
Easy-to-fold stroller folds flat and has removable back wheels for compact storage
Large storage basket for essentials
Ultra-lightweight car seat design at just under 8 lbs.
Built-in vehicle belt lock-off arm helps you get a secure fit during installation when using the vehicle belt instead of the rigid LATCH connectors
Infant car seat fits children from 4–30 lbs. and less than 32"
When installing car seat with the vehicle belt, SecureTech™ red-to-green visual indicators show when your seat belt has tension
Infant car seat meets federal Side Impact standard
Car seat is rigorously crash and side-impact tested to meet safety standards
Machine-washable and dryer-safe car seat seat pad
Adjustable car seat base for the right fit in your car
Car seat is LATCH equipped and airplane ready
Car seat is compatible with all Safety 1st modular and traditional strollers to easily become part of a travel system