Britannic at 120m: Warmth vs Weight in 13°C Water

Before I dive the Britannic at 120m, I have to make one critical decision — which drysuit makes it into my bag. Get this wrong and a 3-hour dive in 13°C water becomes a very long, very cold problem. In this video I walk through my full gear reasoning for the 2026 Britannic expedition — comparing two suits I trust, the R2 100 compressed neoprene and the 9090 shell suit, and explaining why warmth ultimately won out over weight. The Britannic sits in the Kea Channel, Greece, and April looks warm on paper — but surface temperatures of 17°C drop to 13°C at depth, and when you're on the wreck for potentially three hours, your thermal system isn't just about comfort. It's a safety margin. I cover: R2 100 vs 9090 — weight, warmth, and what happens if either leaks at depth My undersuit setup: the O3 PB Extreme double-layer thermal system Why I added the Heat Venture Drive V3 heated vest — and what I left at home The surface overheating problem nobody talks about before a long wreck dive The one past pee valve incident that almost changed my mind The decision is made. Whether it was the right one — you'll find out when the dive footage drops. ━━━━━━━━━━━━━━━━━━━━━━ *CHAPTERS* 00:00 The Drysuit Dilemma 00:00:33 The Two Options 00:02:10 Comparing the Suits 00:04:36 Warmth, Comfort & Risk