Stone Age Technology

The Last Sons have access to chipped stone tools, basic wood shaping and on demand fire starting using the bowing method.

Included in this technology is

Basic short bows (These bows only have half the PHB listed range)

Simple bound wood rafts

Cleaned and crudely tanned hides

Generally speaking, this represents a Middle Stone Age level of technology, as described here http://humanorigins.si.edu/evidence/behavior/tools/middle-tools