can you use britax car seat without base Britax Willow S Infant Car Seat + Alpine Base

can you use britax car seat without base Britax Willow S Infant Car Seat + Alpine BaseRide with peace of mind with the Britax Willow(TM) S Infant Car Seat. This rear facing car seat includes the Alpine travel car seat base for added convenience. First ride jitters? Gone. The Willow S is a rear facing car seat with ClickTight(R) technology so you know it can be installed securely on the first ride and beyond. This 5 point harness car seat features a RightSize(TM) system that provides adjustment points at the hips, shoulders and between

Ride with peace of mind with the Britax Willow(TM) S Infant Car Seat. This rear facing car seat includes the Alpine travel car seat base for added convenience. First ride jitters? Gone. The Willow S is a rear facing car seat with ClickTight(R) technology so you know it can be installed securely on the first ride and beyond. This 5 point harness car seat features a RightSize(TM) system that provides adjustment points at the hips, shoulders and between the legs.

• CLICKTIGHT(R) INDICATOR: Helps provide a visual guide while installing the base • ROOM TO GROW: Willow(TM) S infant car seat, rear-facing only; 4 to 30 lbs
• LIGHTWEIGHT & EASY TO CARRY: Move this car seat and base from car to stroller in a snap
• WASHER AND DRYER-FRIENDLY: SafeWash(R) fabrics mean no more hand washing or waiting for the car seat cover and stroller insert to air-dry. Just quick and easy cleanup, so you can keep moving
• NATURALLY FLAME-RETARDANT FABRICS: This baby car seat features naturally flame-retardant fabrics that are safe to wash and dry
• INFANT INSERT PILLOW: This rear facing car seat is designed to provide a more comfortable and customized fit for newborns under 11 lbs
• SAFECELL(TM) TECHNOLOGY: Designed to help manage energy and minimize force transferred to baby
• REBOUNDREDUCE(R) STABILITY BAR: Alpine infant car seat base helps minimize movement in a crash; carry handle provides stability when used in the upright position
• PLUSH HARNESS PADDING: Travel car seat with an extra layer of cushioning helps prevent skin irritation and keep your child comfortable
• EASY FIND AND RECLINE: This car seat features level indicators and spring-assist recline that make it easy to find the correct installation angle for your vehicle
• SPACESAVER(TM) DESIGN: Slim outside, spacious inside; this infant car seat frees up backseat space while giving your child plenty of room for the ride

Specifications

• Product Weight (Car Seat Only) 9.2 lbs
• Seat Back Compartment Height 21"
• Harness Slot Heights 5.5" / 7.5" / 9.5" / 11.5"
• Buckle Strap Depths 2.25" / 5.5"
• Product Weight (Base Only) 10.2 lbs
• Seat Area Depth/Width 12" / 9.5"
• Shoulder Width 10"
• Expires 6 years
• Warranty 1 year