Our Lightest-Weight Running Socks for Cool, Dry & Blister-Free Performance
When every gram counts, the Men’s Atmosphere O₂ Race Socks deliver a barely-there feel without compromising comfort or performance. Our lightest-weight socks, they’re designed to keep your feet cool, dry and comfortable during fast-paced training, racing and active adventures.
Designed with maximum breathability in mind, Atmosphere O₂ Race features micro-mesh ventilation zones that allow air to circulate around the foot, helping prevent heat and moisture from building up during intense activity. Your feet can breathe naturally, while the advanced fibre blend helps move sweat away from the skin for fast-drying comfort.
Constructed using premium Climayarn® technology, these performance running socks combine ultrafine Australian Merino wool with high-performance Schoeller polypropylene. Merino naturally helps regulate foot temperature, while polypropylene rapidly transports moisture away from the skin. The result is a lightweight, breathable sock that helps keep your feet feeling fresh rather than hot and sweaty.
Unlike heavier cushioned running socks, Atmosphere O₂ Race has fine cushioning rather than bulky underfoot padding. This provides just the right amount of comfort and protection while maintaining a lightweight, responsive feel inside your running shoes. If you prefer to feel connected to the ground without unnecessary bulk, these socks are designed for you.
For added blister protection, Profilen® yarn is strategically integrated to help reduce friction, rubbing and the development of hotspots. Combined with seamless construction and a secure performance fit, the result is smooth, irritation-free comfort from your first stride to your last.
The versatile ¼ height profile provides lightweight support with a clean athletic fit, making Atmosphere O₂ Race ideal for road running, trail running, training sessions and race day.
Proudly Made in Australia, the Men’s Atmosphere O₂ Race Socks combine technical innovation, premium natural fibres and an ultra-light construction to help you stay cool, dry, comfortable and focused on every run.
Why You’ll Love Them
🪶 Our lightest-weight socks – a barely-there feel for fast, unrestricted movement.
🌬️ Maximum breathability – micro-mesh ventilation and naturally breathable Merino help air circulate around your feet, keeping them comfortable without overheating.
🌡️ Natural temperature regulation – Australian Merino wool helps regulate foot temperature, keeping feet comfortable in changing conditions and during intense activity.
💨 Fast drying & moisture managing – Merino helps absorb and manage moisture, while high-performance polypropylene rapidly moves sweat away from the skin for a drier feel.
🦶 No bulky underfoot cushioning – fine cushioning provides comfort and protection without adding unnecessary weight or bulk.
🩹 Blister protection – friction-reducing Profilen® yarn helps minimise rubbing and hotspots, while the smooth construction helps reduce irritation.
🌿 Merino comfort – ultrafine Australian Merino is naturally soft, breathable and odour-resistant, helping your feet stay fresher for longer.
🏃 Built for running – a secure performance fit and lightweight ¼ height profile suit road, trail and race-day running.
BUST: Measure the circumference of your chest. Place one end of the tape measure at the fullest part of your bust, wrap it around (under your armpits, around your shoulder blades, and back to the front) to get the measurement.
WAIST: Measure the circumference of your waist. Use the tape to circle your waist (sort of like a belt would) at your natural waistline, which is located above your belly button and below your rib cage. (If you bend to the side, the crease that forms is your natural waistline.)
HIP: Measure the circumference of your hips. Start at one hip and wrap the tape measure around your rear, around the other hip, and back to where you started. Make sure the tape is over the largest part of your hips.
INSIDE LEG: This is the distance from the uppermost inner part of your thigh to the bottom of your ankle. If you have a pair of pants that fit you perfectly, measure the inseam of the pants, again from the crotch to the hem.
Women’s Clothing
Women’s Tops
MEASUREMENTS (cm)
8
10
12
14
16
BUST
80-85
85-90
90-95
95-100
100-105
WAIST
70-75
75-80
80-85
85-90
90-95
HIP
80-85
85-90
90-95
95-100
100-105
Women’s Leggings
MEASUREMENTS (cm)
8
10
12
14
16
WAIST (elasticised)
65-70
70-75
75-80
80-85
85-90
HIP
85-90
90-95
95-100
100-105
105-110
INSIDE LEG
80-82
82-85
85-87
87-90
90-92
Men’s Body Measurements
CHEST: Measure the circumference of your chest. Place one end of the tape measure at the fullest part of your chest, wrap it around (under your armpits, around your shoulder blades, and back to the front) to get the measurement.
WAIST: Measure the circumference of your waist. Use the tape to circle your waist (sort of like a belt would) at your natural waistline, which is located above your belly button and below your rib cage. (If you bend to the side, the crease that forms is your natural waistline.)
HIP: Measure the circumference of your hips. Start at one hip and wrap the tape measure around your rear, around the other hip, and back to where you started. Make sure the tape is over the largest part of your hips.
INSIDE LEG: This is the distance from the uppermost inner part of your thigh to the bottom of your ankle. If you have a pair of pants that fit you perfectly, measure the inseam of the pants, again from the crotch to the hem.
Men’s Clothing
Men’s Tops
MEASUREMENTS (cm)
S
M
L
XL
2XL
CHEST
85-90
90-95
95-100
100-105
105-110
WAIST
80-85
85-90
90-95
95-100
100-105
HIP
85-90
90-95
95-100
100-105
105-110
Men’s Leggings
MEASUREMENTS (cm)
S
M
L
XL
2XL
WAIST (elasticised)
75-80
80-85
85-90
90-95
95-100
HIP
95-100
100-105
105-110
110-115
115-120
OUTSIDE LEG
77
82
89
Athletic Fit
More of a “tailored” fit that is tighter across the middle and shoulder sections in tops and tighter across the backside, upper thigh and lower leg sections in leggings.
Slim Fit
A snug, close-to-the body fit for low bulk, layering. Clothing in this style don’t have extra fabric hanging or draping anywhere.
Regular Fit
Neither snug, nor loose, these garments are worn solo or over other layers. Regular fit clothing tends to fit most body types comfortably and have a little extra fabric than slim fit.
Relaxed Fit
Relaxed refers to a fit that’s looser than regular, but not baggy. Typically, relaxed clothing provide a comfortable, looser fit.
