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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
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Description
uppababy knox car seat base UPPAbaby Knox Convertible Car SeatAt A Glance Features The UPPAbaby Knox Convertible Car Seat has the following Quick glance features: Meet the UPPAbaby Knox, UPPAbaby's new convertible car seat. Do you have (and love) the UPPABaby Mesa Infant Car Seat? Then you will love the Knox. UPPAbaby Knox Convertible Car Seat Safety Features Koroyd technology welded tubes crumble in a collision to absorb the force and minimize the energy transferred to the child. Side Impact Pods located on the
At-A-Glance Features
The UPPAbaby Knox Convertible Car Seat has the following Quick glance features:
Meet the UPPAbaby Knox, UPPAbaby's new convertible car seat. Do you have (and love) the UPPABaby Mesa Infant Car Seat? Then you will love the Knox.
UPPAbaby Knox Convertible Car Seat Safety Features
- Koroyd® technology - welded tubes crumble in a collision to absorb the force and minimize the energy transferred to the child.
- Side Impact Pods located on the side of the car seat's shell absorb crash force in a side impact crash.
- EPP foam located strategically between the inner and outer shell absorbs collision forces.
- Multi-Directional Tether - this unique tether reduces car seat rotation in a collision which decreases stress on the head and neck. In rear-facing mode, the tether has been shown to reduce potential injury by 45%.
UPPAbaby Knox Convertible Car Seat Features
- Rear facing: 14 lbs - 45 lbs
- Forward facing: 25 lbs - 65 lbs
- Removable cup holder that can be installed on either side of the car seat.
- Removable seat base fabric.
- No-rethread harness
- 8 position headrest
- 4 recline positions
- Several fabric options available, including the naturally fire-retardant (chemical free) Jordan.
- Limited Lifetime Warranty - register the Knox within 3 months of purchase and receive a warranty good through the car seat's expiration
UPPAbaby Knox Convertible Car Seat Specifications
|
Child Weight (lbs) |
14 - 45 lbs (rear facing) 25 - 65 lbs (rear-facing) |
|
Child Standing Height (in) |
Up to 49 inches |
|
Car Seat Weight |
33 lbs (forward facing) |
|
Car Seat Dimensions |
23.8” L x 18.8” W x 27.4–32.5” H (height range reflects low and high headrest positions) |
|
Child Age |
Approximately 1-6 years old |
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 17 reviews
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Product Reviews
★★★★★ 5
Good fitting support !
Size: Medium, Color: White
Just what the man needed. Very good contoured support. No jostling. Not a loose potato sack after an hour of wearing this. Highly recommended. Compare? Hanes, for example. Even the Jockey brand. Put those on, they're tight fitting, seemingly supportive. But they're not. They aren't contoured to fit. That's the whole idea. Contoured, to fit. And stay fitted. The trunk type, just like this wirarpa, and in half an hour it's loose loose loose fitting. A potato sack. No support. No support at all. That's not what a trunk brief is supposed to do. It's supposed to support, give comfort and confidence, stay in place feeling. Assuredness. And this wirarpa Mens Trunk does the job ! Wash and wear and wash and wear. Stays in shape, never gets stretched out and loose, for the fit.
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Reviewed in the United States on May 29, 2024
★★★★★ 5
Very Hard to Review. (But he gave it a 5????)
Size: Large, Color: White
This is more of a personal opinion I didn't wanna insult the vendor by rating it anything other than a five or four. Qualities is excellent. It's a very comfortable. It looks nice. The waist and height ratio is accurate and very good for the money value wise you get a decent amount of high-quality underwear. The best part is that it holds his shape and very comfortable.
I'll keep the simple I rated a five because it's high-quality material very good construction and I've used this namebrand in the past before but for their cotton so I know they build very quality products. However, the material for me is overly too soft. This isn't necessarily a bad thing its the type of material (I've had the same type in shirts). This is more personal.
When you're wearing the same material it's not noticeable because they blend in feeling wise the same.: however, this material type I've had in a T-shirt before. Very smooth very comfortable feels elegant but it becomes very noticeable on the skin that it's not the same material as the other clothing. Jeans/cotton etc
let's say you're wearing cotton shorts. It stands out almost like a different layer of clothing, which I don't like the feeling of not being able to blend in with the rest of the clothing. This isn't me strictly being picking anybody who's ever worn different type of materials, there's a double feeling to it that some people may find annoying. Of course, if everything you're wearing is the same type of material bamboo type it would blend in better. But for me, it just stood out too much being used on cotton or say board shorts. It feels like something you would use with the same material/silk or for sleeping, but even then it becomes noticeable with cotton sleep shorts.
I didn't return mine. I kept it, but I'm no longer using it.
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Reviewed in the United States on April 30, 2025
★★★★★ 5
My search is over
Size: Medium, Color: Black
Every few years I have to conduct an underwear search because my existing pairs are failing and the same make/model is no longer available. This year I tried several options until I found these. They are a good length, stopping at the upper thigh. They are comfortable and the elastic is tight enough to stay in place but not cut off my circulation.
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Reviewed in the United States on December 30, 2025
★★★★★ 3
Wirapa is a Bad Choice
Size: Large, Color: Black 01
Right size wrong fit ugh uncomfortable never buying these again i should have known better
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Love these!
Size: Medium, Color: White
Love these! Super soft. Fit perfectly. 100% recommend! Gonna buy more soon!
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Reviewed in the United States on May 27, 2026