Video thumbnail for O'Three Ri2‑100 Drysuit: Why This is STILL My Go-To for Deep Wreck Diving

O'Three Ri2‑100 Drysuit: Why This is STILL My Go-To for Deep Wreck Diving

Dec 21, 2025
If you're into serious wreck diving with long decompression in cold water, your drysuit isn't “just another bit of kit” – it's mission‑critical. After about 15 years of abuse on deep North Atlantic wrecks, this is why the O'Three Ri2‑100 drysuit is STILL my go‑to drysuit for deep wreck diving and colwa ter technical diving. In this O'Three Ri2‑100 drysuit review, I cover: • How warm it keeps you on multi‑hour deco stops in cold water • What happens when it floods, and how usable it still is • Why the suit’s construction has survived years of hard use • The real trade‑offs: weight, buk and flexibility • Who this suit is perfect for – and who should probably look at something else ⚠️ Ambassador disclosure: I’m an O'Three ambassador, but this video is not sponsored. All opinions are based on ~15 years of real‑world use on deep wreck and technical diving dives. ━━━━━━━━━━━━━━━━━━━━━━ *Highlights* 00:00 The Ri2-100 Drysuit 01:31 Why is it so warm? 02:49 PBB+ Undersuit 03:39 Neoprene neck seal 04:42 The warmest suit! 05:46 What if it floods? 07:07 Durability