COOLMAX® Fibre

COOLMAX® Keeps feet dry, all run

Graphene Technology

Graphene fibres regulates heat, boosts durability

Breathable Mesh Zones

Airflow at every intensity

Anatomical Fit (L|R)

Left/Right contoured construction

Grip Yarn

Locks sock in place

Targeted Cushioning

Reinforced at heel and forefoot for impact absorption

Engineered Arch Support

Snug compression for stability and reduced fatigue

COOLMAX® Fibre

COOLMAX® Keeps feet dry, all run

Graphene Technology

Graphene fibres regulates heat, boosts durability

Breathable Mesh Zones

Airflow at every intensity

Anatomical Fit (L|R)

Left/Right contoured construction

Grip Yarn

Locks sock in place

Targeted Cushioning

Reinforced at heel and forefoot for impact absorption

Engineered Arch Support

Snug compression for stability and reduced fatigue

PRFM® Smash Run

$37.90 SGD

Built for the marathon runners. The PRFM® Smash Run is PRFM®'s most technically advanced running sock, engineered to perform from the first kilometre to the last. Whether you are deep in a long training block or standing on the start line, this sock is built to match your ambition, absorbing impact, managing moisture and keeping your foot locked in place through every stride of the race.

Size: S

Find Your Perfect Fit

PRFM® socks are unisex and available in four sizes. Use the chart below to find your size based on your shoe size.

Size Chart

Size	US	EU	UK	JP
S	5 – 7	35 – 38	4 – 6.5	21 – 23
M	7 – 9	39 – 42	7 – 8.5	23 – 25
L	9 – 11	43 – 46	9 – 11	25 – 27
XL	11 – 13	47 – 50	11.5 – 14.5	27 – 29

Fit Tips

If you are between sizes, we recommend sizing up for a more comfortable fit.
All PRFM® socks feature left/right anatomical construction for a precision fit.

Product variants

In stock, ready to ship

Product Features

⚛️ Graphene-Infused Construction Graphene fibres woven into the fabric for structural durability and thermal regulation. Performs better and lasts longer through every wash cycle.

💧 Moisture-Wicking (COOLMAX® Fibre) Pulls moisture away from skin for faster evaporation. A dry foot is a fast foot — wet skin causes blisters and slows you down.

[ L | R ] Seamless Toe & Anatomical Left/Right Fit Flatlock seamless toe with separate left and right sock design. No seam pressure, no friction hot spots and works with your foot's natural shape.

🎯 Targeted Cushioning Reinforced padding in the heel and forefoot for impact absorption. Protects where you need it most without unnecessary bulk.

🦶 Engineered Arch Support Structured mid-foot compression band knitted directly into the sock. Reduces fatigue over long distances and stabilises dynamic movements.

🕸️ Breathable Mesh Zones Open-knit mesh panels on the upper foot for airflow. Reduces heat build-up during long sessions, essential in Singapore's heat.

🦵 Achilles Tendon Support Padded cushion zone at the rear of the ankle providing protection and support around the Achilles tendon. Reduces irritation from shoe collars and absorbs impact during high-intensity efforts.

🔒 3D Heel Pocket Deep contoured heel cup knitted to lock the sock in position. Eliminates heel slip and stays put from warm-up to finish line.

🦠 Anti-Microbial Protection Inhibits odour-causing bacteria. Keeps socks fresher longer through high-intensity humid training.

🧵 High Precision Knitting Every cushion zone, compression band and feature placement is exactly where it needs to be. Precision is what separates a performance sock from a generic one.

🪢 Grip Yarn Construction High-performance grip yarn integrated at the footbed. Eliminates in-shoe sock movement for cyclists and runners at full pace

Size Guide