Material Composition

• 85% Nylon, 15% Spandex
• 100% Polyester
• Nylon blend with plastic hardware
• BPA-free TPU soft flasks (2 × 450ml)

Fabric Features

Lightweight, breathable, stretchable, quick-drying, and moisture-wicking for enhanced comfort during long runs or warm-weather training. The mesh design supports airflow, while reinforced stitching ensures durability.

Care Instructions

• Hand wash in cold water with mild detergent
• Air dry in a shaded, ventilated area; avoid direct sunlight
• Do not iron
• Do not bleach or use harsh chemicals
  

Additional Care Tips

• Remove kettles and reservoir before washing
• Rinse kettles and hydration bladder thoroughly after each use to prevent mold and odor
• Do not machine wash or tumble dry, as this may compromise the structure and fabric
• Store fully dry in a cool, dry place
• Clean high-contact areas (straps and back panel) more frequently during hot weather or intense use

Fit Description

The Bryn Ultra-Lightweight Running Hydration Vest is engineered for a snug, bounce-free fit during high-movement activities such as trail running, hiking, or marathon training. The ergonomic design hugs the torso, distributing weight evenly to minimize strain and maximize comfort.

Design Details

• Featuring dual front buckle closures and adjustable shoulder straps, the vest offers a customizable fit for a wide range of body shapes. This ensures stability while allowing full range of motion.
  
• The vest includes a rear compartment for a 2L hydration reservoir and two front pockets designed for 450ml soft flasks (included), keeping hydration within easy reach.
  
• The ventilated mesh fabric allows for airflow across the back and chest, reducing heat and moisture build-up.
  
• Multiple elasticated compartments at the front and sides allow easy access to energy gels, keys, phone, or snacks without interrupting your stride.
  

Size Guide

Available in sizes S, M, L, and XL. Refer to the size chart provided on the product page to determine your best fit based on chest circumference.

• 75–85 cm
• 85–95 cm
• 95–105 cm
• 105–115 cm
  

The vest is designed to fit snugly against the body. For a more relaxed fit or if layering over bulky clothing, consider sizing up.

Body Type Suitability

Thanks to its highly adjustable straps and form-fitting design, the Bryn vest is suitable for both men and women across a variety of body types. The lightweight construction makes it especially comfortable for endurance athletes and runners.

Model Information

The model pictured is 175 cm tall with a chest measurement of 88 cm and is wearing size M.

Additional Fit Tips

• Adjust the shoulder and chest straps evenly to prevent chafing.
• For optimal comfort, ensure the vest sits high on the back and snugly across the ribs without impeding breathing.
• When loaded with a full 2L reservoir, re-tighten straps slightly to maintain stability.