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| Size | Chest | Waist | Hip |
|---|---|---|---|
| XXS | 70–76 | 54–60 | 78–84 |
| XS | 76–83 | 60–67 | 84–91 |
| S | 83–90 | 67–74 | 91–98 |
| M | 90–97 | 74–81 | 98–105 |
| L | 97–104 | 81–88 | 105–112 |
| XL | 104–114 | 88–98 | 112–120 |
| XXL | 114–124 | 98–108 | 120–128 |
Listed size: XS · body measurements in cm, as published by Nike
Use the brand body chart as a starting point. Ask us for flat measurements of this exact piece to compare with a garment you already wear.
The oldest Rosa & Co. kit in our archive comes from the group's hottest streak: three seasons in which its athletes took a sixteen-year-old world record apart in Chicago, won London twice over and stacked half marathon records like firewood.
2019 opened with Ruth Chepngetich's 2:17:08 course record in Dubai in January; what she did in Doha that autumn was done in Kenya's federation kit and lives in our Kenya 2019 page. On 13 October Brigid Kosgei, raised in the group's Kapsait camp, ran 2:14:04 in Chicago: Paula Radcliffe's world record, 16 years old, gone by 81 seconds. Kosgei had already won London that spring as the youngest champion in the race's history.
The pandemic year narrowed to one bubble in St James's Park — and the group took it over: Kosgei defended London (2:18:58) with Chepngetich third.
Racing shorts are lightweight split-seam shorts built for track and road racing: a woven shell of roughly 64–92 grams, a built-in brief liner instead of underwear, and an open outer seam that frees the leg at full stride.
The split itself has a birthday. British marathoner Ron Hill tore his side seams open in frustration, won the 1970 Boston Marathon, and founded Ronhill that September to sell the fix. Every race-issued pair in this archive descends from that pair of scissors.
Racing shorts are the bottom half of the classic athletics kit: a featherweight woven shell, an elastic waistband with a drawcord, a built-in brief liner instead of underwear, and as little length as the job allows.
What separates a race pair from the shorts in a gym bag is the side seam. On a split short the outer seam is left open, the front panel simply overlapping the back. At full stride the leg lifts through the gap instead of dragging fabric with it.