Feetures High Performance Ultra Light Cushion No-Show Tab Socks Size:Medium Effort Pace is a unique

Effort Pace is a unique COROS metric that tells you how hard you're actually working when on hilly terrain

versatile personal filtration system

38 hours of GPS activity tracking

where the bicarbonate is absorbed

bounce free

Feetures High Performance Ultra Light Cushion No-Show Tab Socks Size:Medium Effort Pace is a uniquePower bands of Lycra hug your entire foot for maximum support. This snug, supportive fit eliminates movement to prevent blisters. Ultra thin construction takes up minimal room inside the shoe. iWick fibers wick moisture to keep feet cool and dry. Mesh construction on top of the sock provides ventilation for added breathe ability. Y heel construction keeps the sock from sliding into the shoe. The Perfect Toe! (No irritating toe seam.)