Engineered for high-mileage efforts and rapid recovery, the Icebreaker Men's Run+ Compression Over the Calf Socks combine the moisture-wicking power of premium merino wool with advanced graduated compression. Designed to stimulate blood flow, reduce muscle vibration, and combat calf fatigue, these anatomically fitted socks deliver blister-free comfort and temperature regulation whether you are tackling an ultramarathon or recovering after a tough track workout.

​Specs & Features

​Technical Specs

• ​Height: Over the Calf (OTC) - providing full coverage and support for the soleus and calf muscles.
• ​Cushioning: Ultralight / Micro (minimal padding to maintain an ultra-responsive feel inside tight-fitting running shoes).
• ​Material Composition: Premium Merino Wool Blend (heavily interwoven with Nylon and LYCRA® to provide the precise elasticity needed for medical-grade compression).
• ​Fit: Anatomical Left/Right specific.

​Key Features

• ​Graduated Compression: The compression is firmest at the ankle and gradually decreases up the calf, promoting venous return (blood flow back to the heart) and flushing out lactic acid.
• ​Anatomical Toe Box: Asymmetrically designed for the left and right foot to prevent fabric bunching and blistering, complete with a seamless toe closure to eliminate chafing.
• ​Targeted Support Zones: Engineered stretch zones cradle the Achilles and instep to provide stability and keep the sock firmly locked in place during high-cadence running.
• ​Breathable Mesh Panels: Integrated ventilation zones over the instep efficiently dump excess heat and moisture to keep your feet dry and cool.

​Care Instructions

​Compression gear requires careful washing to maintain its elasticity over time:

• ​Wash: Machine wash cold on a gentle cycle. Always wash inside out to protect the merino fibers and flush out sweat trapped in the fabric.
• ​Detergent: Use a mild liquid detergent. Strictly avoid fabric softeners and bleach, as they break down the LYCRA® (elastane) fibers and permanently ruin the sock's compressive properties.
• ​Drying: Line dry in the shade. Do not tumble dry, as high heat will destroy the elastic components and cause the merino wool to shrink, making them impossible to put on.
• ​Ironing/Dry Cleaning: Do not iron. Do not dry clean.

​X-Boundaries Professional Tips

• ​The "Roll and Pull" Technique: Because these are true compression socks, they can be difficult to put on. Do not pull them from the top cuff. Instead, reach inside the sock, pinch the heel, and pull the sock inside-out up to the heel. Slip your foot in, then smoothly roll the rest of the sock up your calf.
• ​Never Fold the Cuff: Once they are on, never fold the top cuff down. Folding the cuff doubles the compression in one spot, acting like a tourniquet that restricts blood flow—the exact opposite of what the sock is designed to do.
• ​Dual-Purpose Recovery: You don't just have to wear these while running. Putting them on immediately after a grueling hike, long run, or during a long-haul flight is one of the most effective ways to reduce lower leg swelling and speed up muscle recovery.