What Our Gearhead(R) Experts Are Saying:"When you're headed to the top of the world, this is the suit you want. I've tested it in brutally cold, wind-scoured environments, and it kept me warm, mobile, and protected without any failures. It's clearly engineered by people who understand life at 8,000 meters."When the margin for error is razor-thin, the Rab Expedition 8000 Suit becomes our best ally. Purpose-built for the highest, coldest places on earth, this suit is Rab's most thermally protective garment-trusted by elite athletes for summiting 8,000-meter peaks and traversing polar regions. Every element of its construction is driven by survival-first performance: an 850-fill goose down interior provides exceptional warmth-to-weight, while the Pertex Quantum Pro outer shell shields from howling winds and relentless snow. Thoughtful expedition features include full-length side zips, mitt-compatible cuffs, and a two-way front zip with toilet access to ensure we're equipped for every challenge above base camp. The helmet-compatible hood and internal mesh pockets offer mountaineering-specific utility, while a relaxed expedition cut allows for full movement with layered insulation underneath.