RANDY SUN Juncao Fiber Waterproof Breathable Socks Mid Calf RS341

Description

FLEX Series. Everyday comfort for changing weather.

Ultra-Thin · Highest Breathability · Stretch Fit · Soft

The thinnest and most breathable waterproof socks in the RANDY SUN collection. Designed for everyday wear, commuting, travel, rainy days, and light outdoor activities, FLEX delivers reliable waterproof protection with the soft, flexible feel of a regular sock.

Size Chart

Size	USA Men	USA Women	UK	Europe
XS	4.5-6.5	5.5-7.5	3-5	34-37
S	7-10	8-11.5	6-8	38-41
M	10.5-13	12-14	9-11	42-45
L	13.5-15.5	14.5-16.5	12-14	46-49

At the top of a size? Size up. Our waterproof socks are thicker than normal socks — and that extra room makes all the difference.

Construction & DROPZERO System

Waterproof-Breathable DROPZERO System

Outer Layer — Naturally Soft:
38% Juncao Fiber, 38% Cotton, 19% Polyester, 5% Elastane

Middle Layer — Waterproof & Breathable:
100% PU Membrane, PFAS Free

Inner Layer — Moisture Wicking & Odor Control:
43% Juncao Fiber, 43% Cotton, 10% Polyester, 4% Elastane

Juncao Fiber Technology

Natural Odor Control
Juncao fiber naturally helps reduce odor-causing bacteria. Even after 200 washes, it maintains a bacterial reduction rate of over 97%, helping keep feet fresher for longer.

Breathable & Moisture Wicking
Excellent moisture absorption and breathability help move sweat away from the skin, keeping feet dry, fresh, and comfortable without feeling stuffy.

Soft & Skin-Friendly
Naturally soft and gentle against the skin, Juncao fiber delivers a smooth, comfortable feel with no added treatments.

Plant-Based & Tree-Free
Juncao grows rapidly and can replace wood as a fiber source, helping reduce the need for tree harvesting. Made from a renewable plant-based resource.

Activities

Best for: Everyday wear · Bike Commuting · Travel · Light hiking · Rainy days · Camping · Theme Parks

Do not use waterproof socks for bathing, swimming, or diving — they are not designed for full submersion.

waterproof height