The Saysky Flow Vest 12L is designed for the longer days—more 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 maximum comfort whether you're on technical singletrack or urban pavement.

Features

• Front Hydration: Includes two 500ml soft bottles housed in dedicated chest compartments for easy access on the move.
• Integrated Bladder Support: A specialized internal compartment compatible with most hydration bladders.
• Two Front Mesh Pockets: For quick-access nutrition and snacks.
• Two Secure YKK® Zippered Pockets: For phones, keys, or valuables.
• High-Capacity Back Storage: Secure YKK® zippered back compartment to hold extra layers or commute essentials.
• Removable Gear Cord: An elastic cord system on the back allows you to externally stash a jacket or bulky gear. 
• Detachable Pole Carry: A modular elastic loop system allows for quick-stash or out-of-the-way trekking pole storage.
• Tailored Fit: Easy-adjust side and chest straps ensure a personalized, stable fit.
• Reflective Details: High-visibility elements and an integrated lamp loop for safety during early morning or night missions.
• Breathable Mesh: Lightweight, moisture-wicking materials prevent heat buildup during high-intensity efforts.
• YKK® Hardware: Built with industry-leading zippers for reliable performance in all conditions.

Other Specs

• Materials: 100% Polyester
• Weight: 290 g
  
• Volume: 12L lightweight design with expanded storage.
  

Size & Fit 

• Size S: Perfect for slim runners and smaller builds, fitting a wide range of body types from XS to a small M.
  
• Size M: A versatile option for medium-sized individuals, spanning from a larger S to a small L.
  
• Size L: Ideal for larger frames, offering a fit range from a big M to a small XL.
  
• Each size features adjustable straps to accommodate in-between sizes or layering over light or thick clothing.