GRUMPY MONKEY Midnight Palm Color:BLACK Simple and effective twist mechanism

Simple and effective twist mechanism for on and off flow adjustment

The Plexisol lenses are curved and offer 180 degree vision

Multifunctional Chic design neck tubular designed with recycled materials

The backlit button serves as a power

Battery runtime has increased by 11 hours for up to 87 hours of runtime

GRUMPY MONKEY Midnight Palm Color:BLACK Simple and effective twist mechanismFEATURES Arch support (To help promote circulation) Dri Fit with Breathable mesh Anti droop cuff to ensure your socks never slide Seamless design (to cause less friction and blisters) Double toe and heel support (causes less stress on high impact areas) COMPOSITION Cotton Blend: 78% Cotton 18% Nylon 4% Elastine SIZE CHART GRUMPY MONKEY SOCKS SIZING CHART MEDIUM: UK 4 7 US CANADA 6 10 EURO 41 45 LARGE: UK 8 12 US CANADA 11 14 EURO 45+