Specifications checked against UPPAbaby’s US site and manual on . Not hands-on tested. How I research
Who the Alta V2 high-back booster seat fits
This seat covers one stage. Check the date label on the shell before using a hand-me-down; every seat has an expiry.
High-back booster40 to 100 lb · 38 to 57 in
The seat’s own back and belt guide route the vehicle belt across the shoulder, and the sides give the child something to lean on when they sleep.
What are the Alta V2 high-back booster seat weight, height and age limits?
UPPAbaby Alta V2 high-back booster seat limits by mode
Mode
Child weight
Child height
Minimum age
Conditions
High-back booster
40 to 100 lb
38 to 57 in
Not published
Page states approximately 6-10 years. Must not be used without the backrest (manual)
A child must meet every limit for the mode they use. The labels on your seat and its manual are the final word.
Alta V2 high-back booster seat specifications
Seat weight
17 lb
Width
17.5 in
Depth
20 in
Usable life
See the date label on the seat
Aircraft use
Not certified for aircraft
Height range
25.5 to 33 in
Seat pan dimensions
L 13.5 × W 17.5 × H 3.5 in
Seat pan narrowest width
11 in
How the Alta V2 high-back booster seat installs
Rigid LATCH
Rigid LATCH connectors. Rigid connectors click straight onto the vehicle's lower anchor bars, which removes the strap slack that causes loose installs.
Recline
One-handed recline. The recline angle is what keeps a young baby’s airway open, so set it before tightening the install.
Every install is a fit between one seat and one vehicle. Read both manuals, and use a free inspection station if anything is unclear.
Will it fit your car?
At 17.5 in at its widest, this seat is one of the narrower ones in its class and is a candidate for three across in many mid-size cars. It weighs 17 lb, which matters if you will move it between cars or carry it through an airport.
Check your vehicle manual for lower anchor positions and any head-restraint rules.
Rear-facing seats need front-seat room: try the install behind the driver before you commit.
Not certified for aircraft use: plan on gate-checking it or using a different seat to fly.
What features does the Alta V2 high-back booster seat have?
Rigid LATCH connectors
SecureFit belt routing (lap belt positioners)
Side impact protection pods
One-handed recline
Colors listed in the US
Greyson, Iris, Jake, Kavneer.
Is the Alta V2 high-back booster seat recalled?
No campaign in the current NHTSA child-restraint data names this model family, and I have not run a separate review for it. Check your seat’s model number and date of manufacture before use.
Weigh and measure your child. The limits above are the manufacturer’s, and a child has to meet all of them for the mode they will use.
Confirm the exact version. Colors, retail exclusives and model numbers change limits more often than you would expect; UPPAbaby lists 4 colors of this seat.
Read the manual before you buy, not after. It is linked above and holds the fit rules, the install methods and the expiry.
Check recalls by model number and date of manufacture, and register the seat with UPPAbaby so you hear about the next one.