The 'Insulator' line is a 0.5mm thin neoprene lined with Metalite which keeps you warm by reflecting heat to the body.
The hood is thin, which makes it comfortable to wear.
The Probe hood is ideal for diving in colder to temperate waters.
S 21.5 - 22" S 54 - 56cm
M 22 - 22.75" M 56 - 58cm
L 22.75 - 23.5" L 58 - 60cm
XL 23.5" plus XL 60cm plus