Ultra packable compact showerproof jacket with stretch waterproof panels for outstanding aerodynamic no flap fit and ease of mobilitygreat materials and cut go into making this piece including windproof cire fabric on the front and sides the fit is kept close and cycle specific with stretch panels and set in sleeves for improved articulation when in a cycling position silicone hem grippers help keep it in place welltheres a handy integrated rear water resistant pocket for your phone etc c