JAY J3 Posterior (PA) Back – Upper Thoracic, 18"

Features:

• Lightweight and highly adjustable backrest system designed to fit a wide range of users and wheelchairs.
  
• Available in multiple widths, heights, and contour depths for optimal pelvic and trunk support.
  
• Provides four support height levels to accommodate varying torso lengths and injury levels.
  
• Offers five contour shapes for superior posterior and lateral thoracic stability.
  
• Bariatric J3 Plus Backrest supports up to 500 lbs. and includes an optional pivoting lower shell extension.
  
• Carbon Fiber shell option delivers ultra-lightweight performance, weighing as little as 2.2 lbs.
  
• Compatible with a variety of hardware options, including RH, SH, TH, and 4-point systems.
  
• Optional accessories include lateral pads, chest straps, and head supports for enhanced positioning.
  
• Jay Your Way customization available for individualized fit and function.

Description:
The Jay J3 Wheelchair Back series is a premium, fully adjustable back support system engineered for comfort, stability, and versatility. Designed to meet the postural and positioning needs of a wide range of users, the J3 Back is available in various contour depths, widths, and heights to achieve an ideal fit. The lightweight contoured shell provides exceptional trunk and pelvic stability while maintaining comfort and mobility. The J3 Plus Backrest, developed specifically for bariatric users, offers a reinforced design capable of supporting up to 500 lbs. and includes a lower vanity shell extension for improved positioning without interference. With contour options ranging from 2.2" to 6", users can choose the level of lateral support best suited to their posture and functional needs. The optional Carbon Fiber shell delivers an incredibly lightweight solution for high-performance wheelchairs such as the Quickie Nitrum. Paired with adjustable hardware and available accessories, the J3 Back system provides superior comfort, posture alignment, and personalized support for daily or active use.

Specifications:

• Product Type: Wheelchair Back Support System
  
• Contour Shapes: PA (2.2"), PL (3"), PD (6"), PDL (6"), PDC (6")
  
• Support Heights: Lower Thoracic (6.5"–9.5"), Mid Thoracic (12"–15"), Upper Thoracic (16.5"–19.5"), Shoulder (21"–24")
  
• Product Width: 12"–26"
  
• Product Weight: Starting at 1.4 lbs (without hardware)
  
• User Weight Capacity: 300 lbs (12"–20" widths); 500 lbs (22"–26" widths)
  
• Shell Material: Lightweight contoured shell; Carbon Fiber option available
  
• Insert Material: 1½" soft foam
  
• Outer Cover: Spacer Fabric and Lycra stretch outer layer
  
• Hardware Options: RH, SH, TH, or 4-Point
  
• Hardware Angle Adjustability: 20°
  
• Hardware Width Adjustability: +2"
  
• Frame Compatibility: 3/4" to 1 1/8" tubing
  
• Headrest Mount: Available
  
• Optional Accessories: Spine Align Inserts, Lateral Thoracic Pads, Chest Straps, Harnesses, Whitmyer Head Supports
  
• Customization: Jay Your Way modifications available
  
• Manufacturer: Jay
  

Documentation:

Brochure

• J3 Back - Jay J3 Ordering Guide
• J3 Back - Jay Signature Series Catalog
  
• J3 Back - Jay Family Catalog
  
• J3 Back - Jay Your Way Catalog
  

Other

• J3 Back - Pelvic & Spinal Postures Poster (Education in Motion)
• J3 Back - Seating & Wheelchair Angles Reference Guide (Education in Motion)
  
• J3 Back - Seating Shapes Poster (Education in Motion)
  
• J3 Back - Jay J3 Back PD Expansion Flyer
  
• J3 Back - JAY J3 Plus Backrest Flyer