100% nylon 
pertex® shield fabric
3-layer construction combines lightweight face fabric with waterproof, windproof and breathable membrane
super lightweight fabric (68gsm) and minimal trims provide ultimate packability in changeable conditions (garment weight: 120 g, size Medium) 
optimised for on-bike fit with articulated sleeves and stretch provides freedom of movement 
micro ripstop structure provides durability with softness 
taller collar for elevated weather protection 
combined low-profile bonded and elasticated sleeve cuff and hem construction 
14mm internally taped seams 
two-way waterproof ykk zipper 
reflective trims for visibility 
water protection rating 20,000 (water column) 
made in vietnam

for a perfect on bike fit use the true fit tool here, and choose "what's my size?"