RAB says about the Alpine 600 Long
The Alpine 600 is a premium duck down bag with a slim fitting shape. Featuring Pertex® Quantum fabric and recycled nylon, it offers a good balance of comfort, weight and warmth for cold temperatures on alpine missions Weight saving chevron baffle design on upper torso, reduces down migration and optimises core warmth Trapezoidal boxwall construction with differential cut, to maximise loft and warmth. YKK zipped internal stash pocket. 3-dimensional shaped down filled neck collar to seal in warmth. YKK 3/4 length main zip with down filled baffle to trap warmth. YKK Anti-snag zip insert and anti snag internal zip guard. Angled foot box for relaxed sleeping posture. Zipped storage sack with water-resistant base for home storage . Drawcord stuffsack included. Hand-filled in Derbyshire UK Tapered Mummy Shape .