Prototype - Large Retro Black Foam Ears for JT Proflex

I only have a few of these prototypes to sell. These are modern foam ears for JT Proflex but modeled after the very first JT Proflex soft ears.

Trade-marks Journal Vol. 65 No. 3313

Karwowski, Waldemar - Salvendy, Gavriel - Ergonomics in Manufacturing - Raising Productivity Through Workplace Improvement (1998, Society of Manufacturing Engineers (SME) ), PDF, Human Factors And Ergonomics

Rare JT Flex Frames,Straps & Bottoms @*@

2022 JT FIT 2.0 CUSTOM CUT EAR FOAM OG CK - CK Fight Life

JT Authentic Soft Ears Kit - Black

JT Replacement Soft Ears Kit - Choose Color — Pro Edge Paintball

I only have a few of these prototypes to sell. These are modern foam ears for JT Proflex but modeled after the very first JT Proflex soft ears.

Prototype - Large Retro Black Foam Ears for JT Proflex – Paintball Retro

Complete Guide to Jt Mask Parts, Frames, Flex Bottoms, Lenses and Ears. V2.0 - PbNation

Goggles & Masks, Clothing & Protective Gear, Paintball, Outdoor Sports, Sporting Goods - PicClick