Bilyvia Coolmax Performance Socks
Bilyvia Coolmax Performance Socks
Engineered with Coolmax® Performance Fabric & Individual Toe Separation Technology™
Built for runners, hikers, and endurance athletes who demand long-distance comfort under pressure.
Sizing Chart
| SIZE | MEN US | WOMEN US | UK |
|---|---|---|---|
| M | 3–6.5 | 5–7-8 | 3–5.5 |
| L | 6.5–10 | 8–11.5 | 4–6.5 |
| XL | 10.5–13 | 12–14 | 5–7.5 |
If you are in between sizes, we recommend sizing up for the best fit.
BUNDLE & SAVE
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100-Day Guarantee
Free Shipping Over $50
Easy Returns
Bilyvia Coolmax Performance Socks
- American express payment method
- Apple pay payment method
- Diners club payment method
- Discover payment method
- Google pay payment method
- Master payment method
- Paypal payment method
- Shopify pay payment method
- Visa payment method
FABRIC & CARE INSTRUCTIONS
FABRIC & CARE INSTRUCTIONS
• Breathable performance fabric
• Moisture-wicking & quick-drying
• Designed for running, hiking & everyday movement
• Machine wash cold
• Tumble dry low
• Do not bleach or iron
• For best longevity, air dry recommended
SIZE GUIDE
SIZE GUIDE
Small:
Men US: 4–6.5
Women US: 5–7.5
UK: 3–5.5
Medium:
Men US: 7–9.5
Women US: 8–10.5
UK: 6–8.5
Large:
Men US: 10–13
Women US: 11–14
UK: 9–12
SHIPPING & RETURNS
SHIPPING & RETURNS
Free Shipping On Orders Over $50
Orders are typically processed within 1–3 business days.
Estimated delivery times:
• USA: 7–10 business days
• International: 7–15 business days
Not satisfied with your order? We offer easy returns and a 100-Day Comfort Guarantee.
Need help? Contact us anytime at Support@Bilyvia.com
WHAT MAKES BILYVIA DIFFERENT
BUILT FOR THE LONG HAUL
Engineered to handle friction, sweat, and long-distance movement.
INDIVIDUAL TOE SLEEVES
Separates each toe to help reduce skin-on-skin friction during movement.
MOISTURE-WICKING FABRIC
Pulls sweat away to help keep feet drier during long runs and active days.
ERGONOMIC ANATOMICAL FIT
Designed to move naturally with your feet — without bunching or slipping.
REINFORCED FRICTION ZONES
Extra durability and cushioning where repetitive impact hits hardest.
WHO BILYVIA IS BUILT FOR
IF YOU PUSH YOUR FEET,
BILYVIA IS FOR YOU
Built for movement, distance, long hours, and the friction that comes with them.
WHY MOST SOCKS STILL FAIL
YOU'VE BEEN SOLVING THE WRONG PROBLEM
Most performance socks reduce friction between the sock and your shoe. That matters — but it's not the only friction problem.
The bigger issue happens inside the sock: skin rubbing against skin between your toes, thousands of times during every run, hike, shift, or workout.
Moisture builds up between compressed toes, heat intensifies the friction, and hotspots start to form.
Bilyvia changes the source of friction completely by wrapping each toe individually — helping reduce skin-on-skin contact while allowing moisture to disperse more naturally.
That means fewer hotspots, less irritation, and more comfort through every mile and movement.
WHAT CHANGES WHEN YOU SWITCH
THE DIFFERENCE
YOU'LL FEEL
US VS THEM
WHY CHOOSE BILYVIA?
Bilyvia vs. Regular socks
Backed By Our 100-DayComfort Guarantee
Try Bilyvia risk-free with our 100-Day Comfort Guarantee.
If you’re not completely satisfied with the comfort, fit, or performance of your socks, simply contact us at support@bilyvia.com and we’ll make it right.
No stress. No hassle. Just better comfort for every mile and movement.