Deuter Speed Lite 15 Pack - in stock now. FEATURES of the Deuter Speed Lite 15 Pack Delrin® U-frame Lightweight, high strength polyamide with reinforcements on bottom of pack Special tapered shape for extra arm freedom for running, ski touring or climbing Height adjustable chest strap Side mesh pockets allow quick access to energy food of drink bottles Handy finger pull loops on the zipper slides Attachment loops for optional helmet holder 3M reflectors External zip pocket for small items