does britax pinnacle convert to backless booster Britax UpNGo Backless Booster Car Seat (Raven Black)

does britax pinnacle convert to backless booster Britax UpNGo Backless Booster Car Seat (Raven Black)The Britax UpNGo backless seat booster gives your child the boost they need to move up into the final car seat stage and go anywhere with confidence. Designed for children from 40 120 lbs and 46 63", this booster combines the portability and convenience that parents look for with kid approved comfort and style. UpNGo is innovatively designed with PosturePlus to help encourage proper posture and seat belt positioning. It also includes a shoulder belt

The Britax UpNGo™ backless seat booster gives your child the boost they need to move up into the final car seat stage and go anywhere with confidence. Designed for children from 40-120 lbs and 46”-63", this booster combines the portability and convenience that parents look for with kid-approved comfort and style. UpNGo is innovatively designed with PosturePlus™ to help encourage proper posture and seat belt positioning. It also includes a shoulder belt guide to help keep the seat belt in the right place. 

Specifications

• Boost, Buckle, Go: Belt-positioning booster lifts your child up to use the vehicle seat belt. 
• Extended Maximum Capacity: Designed for children from 40-120 lbs and 46”-63".    
• PosturePlus™ Contoured Seat: Helps encourage proper posture and seat belt positioning.    
• SpaceSaver™ Design: 17.1” seat leaves plenty of room for siblings & carpoolers! This slim booster seat fits 3 across in most vehicles without compromising safety or comfort. *Britax cannot guarantee 3-across fitment in all vehicles.     
• Lightweight & Portable: Thanks to the built-in carry handle and lightweight design, you can take this booster anywhere. Weighing under 4 lbs, it’s easy for both caregivers and kids to carry.  
• Removable SafeWash® Cover: Safe to machine wash and dry. 
• Naturally Flame-Retardant Fabrics: No added FR chemicals. 
• Designed for Comfort: Kids can enjoy every ride thanks to the contoured seat with breathable foam and soft padding. Plus, the large, padded armrests provide that extra boost of comfort.  
• 2 Dishwasher-Safe Cup Holders: Keep drinks and snacks within reach; easy to remove for cleaning between rides.   
• Padded Carry Handle Cover: Helps ensure a comfortable grip.    
• Color-Coded Belt Guides: Help kids learn how to buckle up safely.    
• Shoulder Belt Guide: Helps keep the shoulder belt in the correct position, encouraging proper fitment as your big kid continues to grow. 
• Soft & Smooth Knit Fabric: For comfort and a sleek appearance.  

Dimensions & Weight

• Dimensions: 9"H x 15.5"D x 17.1"W
• Product weight: 3.1 lbs.