The warmest of the Alpine Pro range, the Alpine Pro 400 is a warm mid-weight down-filled sleeping bag, designed for cold conditions and year-round mountain use.Well suited to alpine climbers, the Alpine Pro sleeing bag from Rab is designed to take you from long multi-day rock routes through to lightweight mountaineering and winter conditions. This Rab Sleeping Bag is significantly lighter than its predecessor without compromising warmth.Crafted using lightweight, yet durable and water-resistant Pertex Quantum Pro fabric this sleeping bag has an impressively small pack size containing the highest quality 650FP ethically sourced European Goose Down for maximum warmth.To enhance warmth around the centre of the body the Alpine Pro 400 Sleeping Bag has been constructed with an updated chevron-shaped baffle design to maximise warmth without increasing weight and ensures that the down will stay in place without migration.Trapezoidal chambers also aid in the upkeep of warmth within the sleeping bag by eliminating cold spots so you can have a warm comfortable sleep. For added lightness, the Alpine Pro 400 has a \'mummy taper\' shape and angled footbox that allows for free movement within the sleeping bag for a warm yet unrestrictive feeling.A specific ergonomic fit ensures optimum performance and ultimate warmth. The sleeping bag has a close-fitting internal collar with a hood drawcord to help retain the heat as well as a 3/4 length YKK anti-snag zip with an insulating draft tube to keep out the cold. Within is a handy internal stash pocket ideal for keeping belongings close by and safe if you need quick access to them during the night.Completing the Rab Alpine Pro 400 Sleeping Bag is the accompaniment of a dry bag compression stuff sack that allows easy transporting of the sleeping bag as well as a cotton sack for storage when not in use.Pertex Quantum Pro Outer Fabric - Durable and water-resistant for excellent protection in both cold and damp weather.650FP R.D.S Certified European Goose Down - Ethically sourced.Chevron Shaped Baffle - Provides precise distribution of warmth with the risk of the down migrating.Mummy Taper Shape - Allows for a warm comfortable sleep.Trapezoidal Chamber Design - Eliminates cold spots.Angled Footbox - Nonrestrictive movement.Internal Collar With A Hood Drawcord - Close fitting3/4 Length YKK Anti-Snag Zip With An Insulating Draft Tube - Enables easy access in and out as well as retaining warmth when fully zipped.Internal Stash Pocket - Handy for essential items.Dry Bag Compression Stuff Sack - Allows easy transport of the sleeping bag.Cotton Sack - For storage of the sleeping bag when it\'s not in use.Weight - 931g.Lightweight Nylon Ripstop inner fabric.Rab Flourocarbon free Hydrophobic Down developed in conjunction with Nikwax.