The Helium GT range has a looser fit than the classic Helium models. It retains a tapered shape that keeps warmth close to your body, while offering more room inside at the shoulders and feet. You\u2019ll appreciate this on multi-day treks when you spend many nights in a row in your sleeping bag, and when you sleep on your side or often turn over during the night.<\/p>\n
The Regular size comfortably fits people up to 182 cm tall. The interior length is 192 cm, and the maximum interior width is 82 cm.<\/p>\n
Insulation comes from 449 g of duck down with a fill power of at least 700 cuin and a 90\/10 down-to-feather ratio. The down meets the DOWN CODEX standard, so its origin can be traced.<\/p>\n
The manufacturer lists a comfort temperature of 0 \u00b0C, a limit of -6 \u00b0C and its own Good Night's Sleep rating of -5 \u00b0C. In practice, this is a sleeping bag for spring, summer and cooler nights between seasons - it is not designed for winter bivouacs.<\/p>\n
Angled baffles keep the down evenly distributed and prevent cold spots. The 5-chamber anatomical hood can be cinched snugly around your head, while the 4-chamber footbox provides targeted insulation for your feet, where heat escapes fastest.<\/p>\n
Both the HELIUM 20D outer fabric and the Supersoft 20D inner fabric are made from 100% recycled nylon with PFC\/PFAS-free DWR water-repellent treatment. They are lightweight, breathable and soft to the touch.<\/p>\n
The full-length Gemini insulated zip baffle reduces heat loss around the zipper and is reinforced to prevent the zipper from catching on the fabric. The 140 cm two-way YKK zipper lets you ventilate from the foot end on warmer nights. The Lode Lock magnetic closure and inner collar are easy to operate even in the dark.<\/p>\n
When packed, the sleeping bag measures 24 \u00d7 21 \u00d7 20 cm and weighs 890 g, so it takes up little space in your backpack. It comes with a waterproof compression sack with a roll-top closure and a roomy storage sack to help the down retain its loft at home.<\/p>\n
| \n Brand<\/p>\n <\/td>\n | \n Mountain Equipment<\/p>\n <\/td>\n <\/tr>\n |
| \n Model<\/p>\n <\/td>\n | \n Helium GT 400<\/p>\n <\/td>\n <\/tr>\n |
| \n Size<\/p>\n <\/td>\n | \n Regular<\/p>\n <\/td>\n <\/tr>\n |
| \n Colour<\/p>\n <\/td>\n | \n Anvil Grey<\/p>\n <\/td>\n <\/tr>\n |
| \n Designed for<\/p>\n <\/td>\n | \n unisex, trekking, bikepacking, travel<\/p>\n <\/td>\n <\/tr>\n |
| \n Fit<\/p>\n <\/td>\n | \n GT Fit (roomy)<\/p>\n <\/td>\n <\/tr>\n |
| \n Max. user height<\/p>\n <\/td>\n | \n 182 cm<\/p>\n <\/td>\n <\/tr>\n |
| \n Interior length<\/p>\n <\/td>\n | \n 192 cm<\/p>\n <\/td>\n <\/tr>\n |
| \n Max. interior width<\/p>\n <\/td>\n | \n 82 cm<\/p>\n <\/td>\n <\/tr>\n |
| \n Width at foot end<\/p>\n <\/td>\n | \n 60 cm<\/p>\n <\/td>\n <\/tr>\n |
| \n Total weight<\/p>\n <\/td>\n | \n 890 g<\/p>\n <\/td>\n <\/tr>\n |
| \n Insulation<\/p>\n <\/td>\n | \n 90\/10 duck down, min. 700 cuin, DOWN CODEX<\/p>\n <\/td>\n <\/tr>\n |
| \n Fill weight<\/p>\n <\/td>\n | \n 449 g<\/p>\n <\/td>\n <\/tr>\n |
| \n Comfort temperature<\/p>\n <\/td>\n | \n 0 \u00b0C<\/p>\n <\/td>\n <\/tr>\n |
| \n Limit temperature<\/p>\n <\/td>\n | \n -6 \u00b0C<\/p>\n <\/td>\n <\/tr>\n |
| \n Extreme temperature<\/p>\n <\/td>\n | \n -24 \u00b0C<\/p>\n <\/td>\n <\/tr>\n |
| \n Good Night's Sleep (manufacturer's rating)<\/p>\n <\/td>\n | \n -5 \u00b0C<\/p>\n <\/td>\n <\/tr>\n |
| \n Outer material<\/p>\n <\/td>\n | \n HELIUM 20D, 100% recycled nylon, PFC\/PFAS-free DWR<\/p>\n <\/td>\n <\/tr>\n |
| \n Inner material<\/p>\n <\/td>\n | \n Supersoft 20D, 100% recycled nylon, PFC\/PFAS-free DWR<\/p>\n <\/td>\n <\/tr>\n |
| \n Construction<\/p>\n <\/td>\n | \n angled baffles, 5-chamber hood, 4-chamber footbox<\/p>\n <\/td>\n <\/tr>\n |
| \n Zipper<\/p>\n <\/td>\n | \n YKK, two-way, 140 cm, Gemini zip baffle, Lode Lock closure<\/p>\n <\/td>\n <\/tr>\n |
| \n Packed dimensions<\/p>\n <\/td>\n | \n 24 \u00d7 21 \u00d7 20 cm (approx. 10.1 l volume)<\/p>\n <\/td>\n <\/tr>\n |
| \n Package contents<\/p>\n <\/td>\n | \n sleeping bag, waterproof compression sack, storage sack<\/p>\n <\/td>\n <\/tr>\n <\/table>\n <\/div>","seo_title":"Mountain Equipment Helium GT 400 Regular \u2013 lightweight down sleeping bag, 890 g","seo_description":"The lightweight Mountain Equipment Helium GT 400 Regular down sleeping bag weighs just 890 g. Roomy GT Fit, 700 cuin duck down, 0 \u00b0C comfort rating and a packed size of 24 \u00d7 21 \u00d7 20 cm for trekking, cycling and long trips.","image_url":"https:\/\/public-68travel.nbg1.your-objectstorage.com\/media\/16652\/square-image---2026-10-20T120410.130.jpg","detail_image_url":"https:\/\/public-68travel.nbg1.your-objectstorage.com\/media\/16652\/square-image---2026-10-20T120410.130.jpg","category":{"uuid":"fa32e14c-d9bf-4fd8-ae6f-f050713d6fee","name":"Sleeping Bags","slug":"sleeping-bags"},"brand":{"uuid":"f622626a-ed34-4639-bf33-7a0111db6ac8","name":"Mountain Equipment","slug":"mountain-equipment"},"currency":"USD","retail_price":460,"retail_price_discounted":414,"sku":"11949","url":"https:\/\/www.68travel.com\/product\/mountain-equipment-helium-gt-400-regular-down-sleeping-bag-anvil-grey"} |