Ultraspire Legacy 3.0 Runner's Hydration Vest — Pitch Black, 10L, Universal Size 26–48

Meet the Ultraspire Legacy 3.0 Runner's Hydration Vest

Lightweight yet capable, this 10L hydration vest is designed for runners who value a close-to-body feel and quick access to fluids and gear. Weighing about 14 oz (397 g), the Legacy 3.0 sits comfortably against the torso, reducing bounce while keeping essentials within reach on long miles.

Smart design for natural movement

ErgoFit mirrors the body's complexity to minimize interference with biomechanics. The Max02 Waist System uses a stretchable cord to maintain a secure, natural breathing pattern as you move, empty or loaded, so the pack stays snug without restricting stride. Quiet hardware and a lightweight silhouette help you stay focused on rhythm and pace.

• ErgoFit ensures precise movement and contact where it matters most
• Max02 Waist System promotes a comfortable, natural breathing pattern
• Lightweight construction with quiet zippers for a distraction-free run

Storage, accessibility, and capacity

With a total capacity of 10L (610 in³) and a thoughtful layout, this vest keeps hydration and gear organized for fast, on-the-go refills. Front and rear pockets offer varied storage without compromising comfort or movement. A bladder sleeve and reservoir compatibility add flexibility for longer outings.

• 4 front bottle holsters for quick sips
• Front zipper pocket, front mesh pocket, and 2 front storage pockets
• 2 rear holsters, 1 rear zipper pocket, 1 main rear compartment
• 1 bladder sleeve with 2L Reservoir 2.0 compatibility (not included)
• Overall pack volume: 10L / 610 in³

Materials, durability, and comfort

The Legacy 3.0 uses 70D nylon with silicone and PU coatings to resist water and abrasion. Sweat-proof webbing minimizes moisture transfer, while large-holed mesh boosts breathability and keeps the overall weight down. The fabric is paired with plush micro-fiber edges for a soft touch against skin and clothing.

• 70D nylon with protective coatings for durability
• Water and abrasion resistance with coated fabrics
• Breathable mesh and sweat-proof webbing to reduce weight and moisture
• Soft, non-abrasive edges for comfortable wear

Versatility from entry to championship needs

The Legacy 3.0 is designed to be versatile, with safety stitching at stress points, quiet, easy-to-use zippers, and durable construction. It aims to support a wide range of runs, from daily training to race-day pacing, without promising guaranteed outcomes.