What Makes a Fabric Sweat-Wicking, Really?
A fabric is sweat-wicking when its fibres and knit pull moisture off the skin by capillary action and spread it across a wide surface, so a small volume of sweat covers a...
HYROX Intel
Perspectives on the sport. Written by our Athletes, and our Founders.
Hyrox Intel — Tagged "Fabric Science"
The Trade-Off Between Ultra-Light Kit and Durability
The trade-off between ultra-light kit and durability is real but manageable: thinner, lighter fabric has less material to resist abrasion and tension, so it can wear faster, while heavier fabric lasts longer...
Why Do Some Tops Cling When Wet and Others Don't?
Some tops cling when wet because absorbent fabrics like cotton soak water into the fibres, making the material heavy, limp and adhesive against sweaty skin. Tops that stay off the skin use...
How Fabric Weight Affects Performance in a 90-Minute Race
Fabric weight affects a 90-minute HYROX mainly through how much sweat it holds, not through the dry grams. A light fabric that stays light when soaked keeps you cooler and drag-free across...
Why Reinforced Shoulders Matter for Sled and Rack Work
Reinforced shoulders matter for sled and rack work because both movements load fabric hard across the top of the shoulder, exactly where a garment is thinnest and most prone to abrasion and...
Why Does Technical Kit Feel Lighter Than Cotton When Soaked?
Technical kit feels lighter than cotton when soaked because synthetic fibres like polyester repel water and hold only surface moisture, while cotton absorbs water into every fibre and can carry several times...
Heat-Sealed vs Stitched Pockets: Which Survives HYROX Training?
Heat-sealed pockets survive HYROX training better than plain stitched pockets because they bond the fabric without needle holes, removing the weak points where seams fray, gape and tear under repeated load and...
Why Do Seams Fail First on the Sled? The Construction Science
Seams fail first on the sled because the push and pull load the shoulders, back and hem with heavy abrasion and repeated stretch, concentrating force exactly where panels are stitched together. This...
Laser-Cut vs Woven Ventilation: Which Keeps You Cooler?
Laser-cut ventilation generally keeps you cooler where it is placed because the openings are larger and precisely targeted, while woven-in ventilation spreads smaller openings evenly across the whole garment for consistent all-over...
Why Does Polyester Beat Cotton for HYROX Training?
Polyester beats cotton for HYROX training because it is hydrophobic, so it moves sweat to the surface and dries fast instead of soaking it up, staying light where cotton grows heavy, cold...