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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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Description
britax starriser Britax One4Life Slim All in One Car Seat ParchmentThe One4Life Slim all in one car seat takes your child from birth to big kid with trusted Britax safety, ClickTight installation, and a slim SpaceSaver design. As a convertible and harness 2 booster seat in one, it grows with your child for 10 years. It starts rear facing with an extended capacity of up to 50 lbs., so your child can ride rear facing longer. It easily converts to forward facing toddler mode (up to 65 lbs.) and high back belt
The One4Life® Slim all-in-one car seat takes your child from birth to big kid with trusted Britax safety, ClickTight® installation, and a slim SpaceSaver™ design. As a convertible and harness-2-booster seat in one, it grows with your child for 10 years. It starts rear-facing with an extended capacity of up to 50 lbs., so your child can ride rear-facing longer. It easily converts to forward-facing toddler mode (up to 65 lbs.) and high-back belt-positioning booster mode (up to 120 lbs.) when your child is ready. With a slim outside and spacious inside, the 17.5” seat is designed to fit 3 across* without compromising safety and comfort. ClickTight helps you install with confidence, every time. The base and shell are easy to wipe down for hassle-free cleanup. The car seat cover is safe to machine wash and dry, and it’s naturally flame-retardant with no added FR chemicals. One4Life Slim features a high-strength steel frame, a SafeCell® crumple zone, and a V-shaped tether. As your child grows, you can easily adjust the 15-position no-rethread harness and headrest with one hand. With cooling channels, premium padding, three infant inserts, and built-in armrests, your child will love every ride.
- All-in-One Car Seat: One4Life® Slim is a convertible and harness-2-booster seat in one!
- It easily converts from a rear-facing infant and toddler seat (5-50 lbs.) to a forward-facing seat (30-65 lbs.) to a high-back booster seat (40-120 lbs.)
- 10 Years of Use: This slim all-in-one car seat grows with your child from 5 to 120 lbs. and up to 63” tall
- ClickTight® Installation: Install with confidence in 3 easy steps: pinch to open, thread and buckle, click it closed!
- SpaceSaver™ Design: Slim outside, spacious inside! The 17.5” seat is designed to fit 3 across without compromising on trusted Britax safety and premium comfort.
- Premium Fabrics: The woven mélange accents give the car seat cover a tailored look, while the soft knit fabric on the padding and inserts helps keep your child comfortable during every ride
- Woven Accents on the Exterior and Comfort Pads: Made from recycled polyester
- Hassle-Free Cleanup: Extra space between the shell and base means you can clean under the seat with ease – and with minimal grooves in the seating area and base, you can wipe it down with no fuss
- SafeWash® Fabrics: No more hand-washing or waiting for the cover to air-dry; just quick and easy cleanup so you can keep moving
- Naturally Flame-Retardant Cover: With no added FR chemicals
- Three Removable Infant Inserts: Help provide a better fit for infants 20 lbs. and under
- Accessible Color-Coded Belt Paths: Make it easy to route the seat belt through the correct path for each car seat mode
- Slide-Out Cup Holders: The dishwasher-safe cup holders slide out with ease for convenient cleaning and click back into place for a secure attachment during rides
\Cup-Holder-Free Option: Remove the cup holders completely and insert the armrest caps to save additional space - 15-Position No-Rethread Harness and Headrest: Adjust together quickly and easily with one hand to help create the proper fit as your child grows; no rethreading, ever!
- Patented V-Shaped Tether with Staged-Release Stitches: Helps slow and reduce forward movement during a crash
- High-Strength Steel Frame: Reinforces the seat structure to help keep it sturdy and stabilized
- Quick-Push, 9-Position Recline with Easy-Read Indicators: Helps you find the most comfortable fit for your child and the correct angle for your vehicle
- SafeCell® Technology: Acts as a crumple zone, absorbing crash energy to help keep it away from your child
- Two Layers of Energy Management: The protective seat shell and foam-lined headrest help absorb impact energy and are designed to help keep your child's head, neck, and body safe
- Soft Comfort Pads: Help prevent the harness from rubbing against your child’s skin
- Flip-Forward Buckle Pad: Stays out of the way for easy boarding; made with extra padding for premium comfort
- Built-In Cooling Channels: Improve airflow to help keep your child comfortable
- Plush Padding: For superior comfort and a quiet ride
- Easy-Pull Harness Adjuster: Lets you tighten the harness using just one hand
- Harness Holder Slots: Keep the harness straps out of the way while your child gets in and out of the seat
- 5-Point Safety Harness with Diamond Weave Webbing: Provides adjustment points at the hips, shoulders, and between the legs
- Tag-Free Headrest: Supports your child’s head and neck without irritation
*Britax cannot guarantee 3-across fitment in all vehicles.
Specifications
- Dimensions: 24.5"H x 18.5"D x 17.5"W
- Weight: 28 lbs.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Great Tasting and Already to GO!!
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
As someone who’s into fitness, I was looking for a tasty protein shake that I could grab on the go, and the Core Power High Protein Milk Shakes have become my favorite. This is the chocolate flavor, 14 fl oz bottles, and they come in a case of 12. Each bottle packs 26g of protein which is perfect for recovery after a workout or even as a meal supplement if I’m in a rush. What sets Core Power apart for me is the taste and texture – the chocolate flavor is rich and creamy, not chalky or overly sweet like some other RTD shakes. It’s like drinking a chocolate milk, honestly. I also like that it’s made with real milk (ultra-filtered lowfat milk), so it contains natural high-quality protein (both whey and casein) and it also has a good amount of calcium. It’s not just a thin water-based shake; it feels more satisfying and indulgent. Despite the creaminess, it’s actually low fat and doesn’t sit heavy in my stomach. I usually chill them in the fridge and it’s a nice cold treat post-gym. They’re lactose-free (the ultra-filtering removes lactose, I believe), which is great because I’m a bit lactose sensitive and I’ve had zero issues digesting these. Each bottle also has around 170 calories and they are pretty low in added sugar compared to some other brands – plus the 26g of protein per bottle is a solid dose. I find it keeps me full for a decent amount of time. The convenience is top-notch; I keep a couple in my gym bag (they’re shelf-stable until opened) and a bunch in the fridge. The 12 pack usually lasts me a couple of weeks if I’m doing one a day after workouts. It’s also a lifesaver for those mornings I don’t have time for breakfast – I can just drink one of these and know I’ve gotten protein and some nutrients in. All in all, Core Power Chocolate is delicious and effective. It feels like a treat but is fueling my body with what it needs. I’ve tried many protein shakes and this one is by far the best tasting and easiest on the stomach. Highly recommend for athletes, gym-goers, or anyone wanting a protein boost with great taste.
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Reviewed in the United States on July 18, 2025
★★★★★ 4
Good taste, convenient
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
I’m not the biggest fan of protein shakes but find these to be quite good. My dietitian recommended them as a convenient option for snacks or days when I need something quick I can grab. These hit the spot on those busy meeting days and keep me energized and full til my next meal.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Is this a meal replacement or a chocolate shake?
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
By far my favorite meal replacement shake! Delicious like a chocolate shake! Chock full of protein and other essential ingredients for a healthy meal. I like the vanilla one but by far chocolate is my favorite. Very smooth and can probably mix with other supplements, it goes down easy. You can also take it with you on the go!
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Tastes great!
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
Multiple times re-ordering, this is a great tasting drink. That is quick and easy to grab for everybody in the house. Full of protein taste great and healthy. Makes me feel good. Having even the kids grab one on their way out the door if they are missing a meal or need a quick snack or pick me up before sports we currently need to re-order so I don’t have any pictures to post but if you’re thinking about it I would get them .
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Probably the best
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
I'm not a super meat head muscle workout guy, but I went from being very active about my nutrition and macros and then had an accident which left me disabled so my needs changed. This fits different needs, but is still really really exceptional.
If you're a gym rat just looking for *only* plain old bulk protein to take after workouts, or you reeeeeeallly take a lot of it, honestly I'd get a big giant tub of bulk powder from like muscle milk or optimum nutrition. The price is just too good to ignore, & plus you can add another scoop or two to double or triple the protein. You can't really beat it, other than taste.
Speaking of taste, whether it's a pre-mix or powders, I've never, ever ever ever tasted a protein shake that tasted as good as this chocolate one. Dozens & dozens of brands over the decades, & the only one that comes close was the OG Muscle Milk recipe in the old tetra packs from like 15-20 years ago, before they were bought by Gatorade or whoever. This has NO right tasting as good as it does, with as little sugar, calories, & fat. PLUS having artificial sweeteners like stevia & sucralose. One reason I despise pre-made shakes, zero calorie & low sugar drinks is because I have a very strong detection of artificial sweeteners, but I can barely tell these are there. On top of that, 42 grams of protein in 14floz? I don't know what magic Fairlife did, but it's incredible.
One thing I will say though, is if you're taking a protein drink for pretty much anything other than supplemental protein replacement, this doesn't offer too much else. The "vitamins & minerals" aren't too impressive, and though a high protein drink can make you feel full or satiated, calories & fat are important too. As stereotyped it is, something like Ensure has a really good blend of calories, fat, sugar, and a lot of vitamins. There is a reason it's used all over hospitals & nursing homes. Plus the Ensure "Plus" & "Complete" have 16g & 30g protein each, respectively. They don't taste as good as the Fairlife does, but they're actually not too bad, since they use actual sugar. However, those really are meant for convalescing & true meal replacement, not bulking & training.
The only other downside is price really, at $40-45 for a 12 pack, these aren't cheap. However, when compared to a good alternative like optimum gold at about $25 for a 12 pack, you're getting almost double the protein in each drink from 24 to 42, and they're 14oz instead of 11oz, so you're getting 168oz compared to 132oz, which is like getting 3 more drinks worth. It's still a bit costly per bottle, as an Optimum Nutrition/Pure Protein/Premier Protein 11oz pre-made at $25 a 12pk will be a little over $2 each, & the Fairlife 12pk @ $45 is about $3.75 each. Still cheaper than if you went to pick one up at the gym or a gas station or something, a single would probably be $5-7, so there's value there in bulk. If it's worth it to you, that's up to your wallet.
Another plus is they are SNAP/EBT eligible, so that's a massive W.
If you take loads & loads & loads of protein every single day, and lugging a shaker with powder around isn't a problem, bulk powder is gonna be a LOT cheaper. However, if you only drink one every couple days, and don't want to deal with the blender/shaker hassle, and most importantly want the best tasting shake, this is it. This stuff is awesome, & I'll 1000% be trying the vanilla and strawberry as well. The chocolate is an easy 5 and worth trying.
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Reviewed in the United States on April 13, 2025
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