The official T-Shirt and Cap of the Refrigeration Professionals Guild of New Zealand.

T Shirt details: 

Regular fit
Crew neck
Light weight, 160 GSM
100% cotton
Easy tear-out label
Neck ribbing, side seamed, shoulder to shoulder tape, double needle hems, preshrunk to minimise shrinkage     

Cap details:

Featuring stretchable fabric for size variation and recovery to eliminate (or reduce) cap becoming misshapen, the Ottoman has a style for all occasions and is a resilient, textured fabric.
Named after the fabric structure of which it is woven - 95% polyester / 5% spandex
Structured 6 panel design
Pre-curved peak
Padded cotton sweatband
Velcro closure