# There's no scenery, only the clock > Swimming has no view, no crowd and nothing to look at but a black line and a pace clock. Printing the set and the clock face is the most accurate possible description of the sport. August 17, 2026 · https://justog.club/stories/swimming-shirt A pace clock face, the set written in swim shorthand — `10 × 100 ON 1:30` — and a large `3` for the lane. That's the entire experience of the sport, and it fits on a chest with room left over. ## Why is the clock the right subject? Because it's the only thing a swimmer looks at. There's no landscape, no crowd noise you can hear, and nothing in your field of vision but a black line on the bottom of the pool. Every length ends with your head coming up to check a clock, and the number on it decides whether the next one starts now or in six seconds. Nothing else in sport has that relationship with a single instrument. ## What does the shorthand mean? Ten repetitions of a hundred metres, leaving every ninety seconds. Which is a complete workout description in eleven characters, and it's the standard notation on every whiteboard at every pool. It tells a swimmer the distance, the volume and — from the interval — exactly how hard it's going to be. It's the same phenomenon as [a barista's dial-in numbers](/stories/coffee-shop-staff-shirt): a compact working notation that reads as a complete sentence to a small population and as a code to everybody else. ## What makes a good set to print? One that hurts in a way people recognise. `10 × 100 ON 1:30` is a workhorse. `20 × 50 ON :40` is a different kind of bad. `1 × 1500 — STEADY` is a joke about how long that takes. A set is a personality test within the sport, and choosing one is choosing which kind of swimmer you are. The most affectionate version is a set from a specific squad — the one their coach always writes on a Tuesday, that everybody groans at. ## Why the lane number? Because lane order is a hierarchy nobody states out loud. In most squads, lane one is the fast lane and the numbers descend from there — or ascend, depending on the pool, which is itself a thing people argue about. Wearing your lane number is a small, precise piece of self-location. [Numbers do that better than words](/stories/numbers-as-a-design), and this one is unusually loaded for a single digit. ## Does it work for masters and club swimmers? Better than for elite swimmers, and that's the underserved audience. Competitive swim merchandise is aimed at meets and teams. The much larger group is adults swimming squads at six in the morning for no reason anybody can explain — and they have almost nothing. A shirt about the set and the clock is for them. It's about the practice rather than the racing, which is where nearly all the hours are. ## Can it name a pool or a club? Your own club, yes — that's normal club apparel and it works well. A public pool's name and a leisure operator's branding are theirs. An invented squad name, or just the lane and the set, needs neither, and reads as universal to anyone who has swum a lane. ## Does it print well? Yes — a clock face is a circle with marks, which is about as robust as it gets. Large numerals, a hard circular outline, and short shorthand text. All high contrast, no fine detail. The only element to size carefully is the set line, which should be readable at conversational distance — [above the weave's floor](/stories/bold-shapes-survive-fabric). Dust blue, faded black or bone all work. The palette of the sport is chlorine and tile. ## How do I get one made? Give the set at [JustOG](/) — the reps, the distance, the interval and your lane. Pick a direction, drag the crop frame, see it composited on the real garment, and it's made to order and shipped. Designs other people have published are in the [shop](/shop). Head up, check the clock, go again. That's the whole sport.