Koala Backloading ARM polo 100% Polyester in a 160gsm micro mesh fabric for durabilityJB’s Dri™ moisture wicking fabric designed to help keep you cool and dryComplies with Standard AS/NZS 4399:2017 for UPF Protection (UPF 50+)Complies with Standards AS/NZS 1906.4:2010 AS/NZS 4602.1:2011 Day..