Member Perks

Slipstream P3000

The first battery-powered, portable swimming machine. Turning vanes plus a horizontal conditioning grill produce a wide, deep, even current, let you log serious volume in a small pool, observe stroke from multiple angles, and run drills without a full lap pool. Yousuli runs Slipstream sessions for adult triathletes who otherwise can’t fit pool work into their week.

Swim range

2.5+ miles per battery (~180 × 25 yd lengths)

Top pace

1:20 / 100 yd

Max flow

~3,000 GPM

Charger

240 W · ~4 hr full charge · 120 V outlet

EO SwimBETTER

Wearable handsets that measure force, propulsion, and stroke rate length-by-length. We pair these with our pool-side technique work so every length is measurable, not guessed. Members get 10% off handsets, plus the standard 6 months of free EO membership that comes with every purchase.

Heads-up: EO can’t stack the discount with extended membership, so the 10% off is the active perk. The 6 months free membership ships with every handset by default.

ThinkChinese

Mandarin learning platform I built on the side, for friends and for the fun of building it. Useful for athletes travelling for races in Asia, building a long-term cognitive habit alongside training, or just wanting something off-the-bike that’s deliberately structured.

Transparency: it’s comprehensive but still in beta. While beta runs it’s free for anyone who signs up. The voucher below applies after beta launches officially, for an extra 3 months of complete access.

ThinkFrench

Same idea, French. Built on the side for friends learning French, with the structure I wish existed when I was learning languages myself. 9 levels, 67 modules, 233+ lessons.

Transparency: it’s comprehensive but still in beta. While beta runs it’s free for anyone who signs up. The voucher below applies after beta launches officially, for 3 months of complete access.

Neversecond

Science-backed endurance fuel from the team behind some of the most-cited gut-training research in the sport. Gels, drink mixes, fuel bars, sodium boosters, dosed at the modern 1:0.8 glucose-to-fructose ratio so the gut can absorb 90+ g of carb per hour with less GI distress. Sits at the centre of the race-day fueling plans we build for coached athletes. More at neversecond.com.

Stryd Next Gen

The footpod that gives you running power. Yousuli uses Stryd data to set run zones, model race pacing, and track durability across long blocks. Pairs cleanly with the calculator library and the run-economy work in the Performance Lab.