Optical heart rate sensors work by using light to measure blood flow in capillaries beneath the skin

Lightweight recycled nylon ripstop is weather-resistant and highly packable

Achilles tab prevents sock from slipping into footwear

Collar configuration

5 in Height x 3

Outway Meow Crew Socks Size:S/M Optical heart rate sensors workCREW MEOW Outways Performance Crew Socks offer all day comfort, durability, and support, with a mid calf cuff for the perfect blend of coverage and performance. The breathable, snug fit keeps your feet cool and comfortable through workouts, runs, and everyday wear, while reinforced high wear areas ensure lasting durability. Targeted cushioning and support provide the ideal balance of comfort and function, making these your go to socks for any