SE Ultra Jersey - Proton. The pinnacle of Factory-level gear, SE Ultra highlights exceptional fit and function with a full redesign from top to bottom. TLD's new "Every-way" stretch material provides a tailored fit with unrestricted mobility and comfort. Enhanced with features like articulated ergonomics, invisible seams, and a premium waistband, SE Ultra delivers a ride that is as smooth as it is powerful. Less is more with the SE Ultra jersey. Premium "Every-way" stretch fabrics prioritize mobility, with race-fit sleeves and articulated construction for a dialed fit at race pace. Features: Precision Fit. Premium lightweight, "Every-way" stretch fabrics designed for unrestricted movement and precise fit. Race-fit sleeves with heat-bonded cuffs provide an athletic fit and unwavering performance. Heat-bonded, full stretch neckline construction reduces chaffing.