engineered for cold-weather performance.
built with COOLmatic | EXP DIAMAfleece lite™, a lightweight fabric we developed with our Japanese mill, this long sleeve features a smooth outer surface and a soft brushed diamond grid on the inside for comfort. embedded with carbon yarn, it enhances temperature regulation and odor control, making it the ideal layered with our HLSTShirt for chilly runs or a standalone piece on milder days. lightweight, breathable, and versatile – designed to keep you moving through the cold.
All product imagery and descriptions have been kindly provided by Ciele Athletics
New
Men's IBTLongsleeve - Shadowcast
Cold Weather
Size Guide
Our kit is cut for running: close where it needs to stay put, roomy where you need to move. Measure yourself once, then use the charts below. Between two sizes? Go up.
How to measure
Use a soft tape measure and wear light layers. Keep the tape level and snug, but not tight.
- Chest. Measure around the fullest part of your chest, under your arms and across your shoulder blades.
- Waist. Measure around your natural waist, the narrowest point above your belly button.
- Hips. Stand with your feet together and measure around the fullest part of your hips.
- Inseam. Measure from the crotch seam down the inside of your leg, or take it from a pair of shorts that already fit well.
Women’s
Tops, bottoms and outerwear. Body measurements, not garment measurements.
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Chest | 81–84 cm 32–33 in |
86–89 cm 34–35 in |
91–94 cm 36–37 in |
97–102 cm 38–40 in |
104–109 cm 41–43 in |
112–119 cm 44–47 in |
| Waist | 64–66 cm 25–26 in |
69–71 cm 27–28 in |
74–76 cm 29–30 in |
79–84 cm 31–33 in |
86–91 cm 34–36 in |
94–102 cm 37–40 in |
| Hips | 89–91 cm 35–36 in |
94–97 cm 37–38 in |
99–102 cm 39–40 in |
104–109 cm 41–43 in |
112–117 cm 44–46 in |
119–127 cm 47–50 in |
Men’s & unisex
Men’s styles and unisex tees like the ORTShirt use this chart.
| Size | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Chest | 86–89 cm 34–35 in |
91–94 cm 36–37 in |
97–99 cm 38–39 in |
102–104 cm 40–41 in |
107–114 cm 42–45 in |
| Waist | 71–76 cm 28–30 in |
79–81 cm 31–32 in |
84–86 cm 33–34 in |
89–91 cm 35–36 in |
94–102 cm 37–40 in |
| Hips | 89–91 cm 35–36 in |
94–97 cm 37–38 in |
99–102 cm 39–40 in |
104–107 cm 41–42 in |
109–117 cm 43–46 in |
Short lengths
Every short lists its inseam, measured from the crotch seam to the hem. Inseam stays the same across sizes.
| Inseam | Styles |
|---|---|
| 3″ / 8 cm | RDShort |
| 4″ / 10 cm | Women’s DLYShort, TRNShort (high rise) |
| 5″ / 13 cm | Men’s DLYShort, ATShort |
| 7″ / 18 cm | Men’s TRNShort, women’s FSTTight Short |
| 8″ / 20 cm | Men’s FSTTight Short |
| 9″ / 23 cm | Men’s CRGTight Short |
Headwear
Wrap the tape around your head, just above your ears and across the middle of your forehead. Caps have an adjustable back, so pick the size closest to your measurement.
| Size | Head circumference |
|---|---|
| S/M | 56.5 cm / 22¼ in |
| M/L | 58 cm / 22¾ in |
| L/XL | 60 cm / 23½ in |
Most beanies and neck gaiters are one size fits most. Each product page lists the sizes that style comes in. Not sure which cap shape suits you? Find your fit.
Still not sure?
Tell us your measurements and what you usually wear, and we’ll point you to the right size. Get in touch.
Free shipping over $100 · 30-day returns
engineered for cold-weather performance.
built with COOLmatic | EXP DIAMAfleece lite™, a lightweight fabric we developed with our Japanese mill, this long sleeve features a smooth outer surface and a soft brushed diamond grid on the inside for comfort. embedded with carbon yarn, it enhances temperature regulation and odor control, making it the ideal layered with our HLSTShirt for chilly runs or a standalone piece on milder days. lightweight, breathable, and versatile – designed to keep you moving through the cold.
All product imagery and descriptions have been kindly provided by Ciele Athletics
At a glance
COOLmatic™
Ciele’s family of fast-drying, wicking knits. PLUS versions add odour control for long days.
FLUIDE™ ripstop
A light recycled woven with a touch of stretch. The ripstop grid stops small snags from spreading.
DIAMAfleece
A diamond grid of recycled pile. Warm where the fleece is, breathable through the channels.
MIKRAmesh™
A fine, airy mesh for cap panels and headbands, so heat has somewhere to go.
PFC-free DWR
A water-repellent finish without forever chemicals. Light rain beads up and rolls off.
