Free guides · The science · Team news

answers that make you faster.

practical, no-fluff guides for swimmers and triathletes — fit, gear, racing and care — written by the people who test suits in a flume for a living. Plus the latest from the deboer team.

Looking for an older post? Browse the archive →
Most readKona 2026: The Podium Swam in Tsunami 4.0
deboer Community News

Kona 2026: The Podium Swam in Tsunami 4.0

Oct 23, 2026  Every man on the podium at the 2026 IRONMAN World Championship started his day in the same swimskin: the deboer Tsunami 4.0. Vincent Luis won. Gustav Iden was second....

Natalie Hinds
Read the guide →