The Mountain Equipment XEROS REGULAR is your ultralight winter sleeping bag, perfect for demanding alpine ridge walks and multi-day climbing tours where every gram counts. With 605g of high-quality, DOWN CODEX-certified goose down (minimum 800 cuin fill power) and the water-repellent, breathable DRILITE® LOFT 10D outer material, it keeps you reliably warm and protects against condensation – even on the hood, thermal collar, and foot section. Patented EXL® technology ensures optimal thermal performance by keeping the inner material close to the body while allowing the down to achieve maximum loft. The trapezoidal chamber construction with seven chambers in the hood and thermal collar and six chambers in the anatomically shaped foot section prevents down from shifting and guarantees even warmth. The long Gemini™ zipper and magnetic Lode Lock™ closure minimize heat loss, while the slim Alpine Fit offers enough space for extra clothing or shoes – ideal even in the smallest bivouac space. Weighing only 1010 g, the XEROS offers you a "Good Night's Sleep" temperature of -14°C – tested in the lab and confirmed by athletes on the go. You can rely on the XEROS to give you a good night's sleep even in the harshest conditions.