Rab Steel Cirrus Flex 2.0 Jacket 
 
It can be used as a soft, breathable midlayer for cold winter days or it can be thrown over a t-shirt for a lightweight warmth boost on chilly summer evenings at the crag. The PrimaLoft Silver Luxe synthetic insulation retains its loft, dries fast and eliminates cold spots in changeable mountain conditions. Thermic™ stretch fleece panels at the sides promote rapid moisture dispersal, while helping the jacket move more freely with your body.
Built with recycled fabrics and insulation along with micro-baffle stitch-through construction for slim-fit breathability, the Cirrus Flex 2.0 Jacket features two internal stash pockets, an adjustable drawcord hem and articulated sleeves with semi-elasticated cuffs. Easy to layer, packable and effective in mixed weather, this is the practical, low-maintenance way to add flexible warmth to your outdoor layering system.
 
Features:
YKK centre zip, and covered YKK pocket zips
Jacket can be packed away in to left hand side (as worn) pocket, with a harness attachment loop inside
There are 2 open ended stash pockets on the inside of the jacket
Micro-baffle, stitch through construction
Stretchy and breathable side and underarm panels
Articulated sleeves, with semi-elasticated cuffs
Single cord/cord lock hem adjustment
Fabric Outer - Pertex Quantum 20D recycled polyamide ripstop/38gsm/ fluorocarbon free DWR
Lining - 20D recycled Atmos polyamide ripstop/ 41gsm with Thermic stretch fleece/ 215 gsm/ 94% polyester 6% elastane
PrimaLoft Silver Luxe Insulation (110g/3.9oz in size L)
Fit: Slim
Centre back length (Size M): 72cm/28.3inch