Revolutionary Lens Design: Advancements in optical design have allowed the lens to be designed with an extended wrap and rigidity in key areas that mimic the structural properties of a frame
and made with 100% recycled polyester and 80-g Thermogreen® Lightweight insulation
breathable construction and long-sleeved silhouette
Ultra-lightweight Rippy™ Air: water repellent
this vest has a built-in hydration system - two 500ml flasks and compatible with 1
Unisex Saysky Flow Vest 12L Mafate Speed 4 Revolutionary Lens Design: Advancements inThe Saysky Flow Vest 12L is designed for the longer daysmore miles, more vertical, and more gear. With a total 12L capacity, this Flow Vest is ideal for runners doing ultra distances 50km and beyond. Engineered for ultras, high alpine adventures, and lightweight commutes, this high capacity vest remains streamlined, breathable, and remarkably light. It delivers a body hugging, bounce free fit that can be precision tuned based on your load, ensuring