Caffeine Molecule Hoodie (premium) - Science Geek Hoodie 65% Cotton 35% Polyester 65% cotton, 35% polyester (310 g/m weight) Heavyweight UltraSoft Peach Finish fabric in all colours. Twin needle stitching detail with tape neck and back neck yoke. Ribbed hem and cuff with thumb hole. 3 panel waffle-lined fabric hood with chunky, flat cords. Kangaroo pouch pocket with hidden MP3 player/phone pocket and headphone opening.