It stays warm well in four-degree water, but the size chart is so special that you can try out a suitable suit or order a custom-made model.
Great product and super fast and affordable shipping.
Good to be able to warm up when decompressing after a deep dive.
A good thermal suit that, however, passively (without heat on top) colder than Weezle extreme +. With the heaters on, dive well in 4 degree water for 2 hours. A well-made suit with a thinner fabric in the right places so that movement is not hampered. You should buy thermal gloves with a suit ready for glove connectors to make heating the gloves easy.
I warmly recommend this with the RB Divers / RP-Engineering Scaleo heat unit connected to Sant’s thermal monitor so you can adjust the heat in 25% steps. Find a company on Facebook.
A really fitting suit, you should really use the size chart when choosing the right size.