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Lightweight, breathable trail socks built for fast movement and a secure fit
Bridgedale says:
Our Trail Run Ultralight Zero is perfect for those who like a super light sock, or to wear with cushioned running shoes. These socks enhance performance with an anti-debris cuff to stop dirt from entering and a reinforced toe seam to prevent any splitting. The Ultralight Zero has maximum mesh ventilation for a highly breathable and moisture wicking sock, providing comfort and breathability in every stride.
Built on a structure of LYCRA® and set by our Thermo Fit process, this ensures the sock returns to its original shape and size after every wash. Whether on or off the trails enjoy comfort and a close fit that doesn’t slip.
Our Verdict
At 42g (Medium), these feel purpose-built for moving quickly on the trail. The women ’s-specific shaping provides a closer fit through the heel and forefoot, helping reduce slippage inside trail shoes. The minimal cushioning keeps the feel direct, which suits lighter footwear and steady pacing. Ventilation is strong, with the merino blend helping manage moisture and odour over longer efforts. The higher cut adds a bit of protection around the ankle without adding bulk. Durability is good for the weight, though the thin construction favours speed and airflow over long-term cushioning.
- Reviewed by Ultralight Outdoor Gear
Features
Specifications
- Small (UK 3-4.5) pair weighs: 40g
- Medium (UK 5-6.5) pair weighs: 42g
Material & Construction
- Fibre Composition: 32% Merino Wool, 64% Nylon, 4%Elastane
- Fit: Supportive arch and ankle compression provide a secure, non slip fit that improves stability, balance, and foot control — the perfect trail running sock designed for performance, comfort, and confidence on every terrain.
- Ultralight: Ultralight Zero Merino sock that breathes with maximum over foot ventilation, for hot summer trail runs or maximum padded trail shoes/trainers.