When comfort is key there is nothing that beats the Kensington Collection. The combination of cotton and elastane ensures you are comfortable throughout your workday no matter what. Raised HH Workwear logo. Main fabric: 92%Cotton / 8% Elastane. Main fabric Grey Melange: 47% Cotton / 45% Polyester / 8% Elastane. Machine wash in luke warm water - 40C, Do not bleach, Do not tumble dry, Iron low heat, Do not dry clean. Main fabric Grey Melange: 66% Cotton / 31% Polyester / 3% Elastane, brushed backside. Machine wash in luke warm water - 40?C, Do not bleach, Do not tumble dry, Iron low heat, Do not dry clean.