ADA Supplies | Safety Equipment
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Size Guide

Find the perfect fit for your safety gear

How to Measure

For the most accurate fit, take measurements over light clothing. Use a flexible measuring tape and keep it snug but not tight. If you're between sizes, we recommend ordering the larger size for comfort.

Hard Hats & Head Protection

Measure around the largest part of your head, approximately 1 inch above your eyebrows.

SizeHead Circumference (inches)Head Circumference (cm)
Small20" - 21"51 - 53 cm
Medium21" - 22.5"53 - 57 cm
Large22.5" - 24"57 - 61 cm
X-Large24" - 25.5"61 - 65 cm

Workwear & High-Visibility Clothing

Chest: Measure around the fullest part of your chest, keeping the tape horizontal. Waist: Measure around your natural waistline.

SizeChest (inches)Waist (inches)Chest (cm)Waist (cm)
S34" - 36"28" - 30"86 - 91 cm71 - 76 cm
M38" - 40"32" - 34"97 - 102 cm81 - 86 cm
L42" - 44"36" - 38"107 - 112 cm91 - 97 cm
XL46" - 48"40" - 42"117 - 122 cm102 - 107 cm
2XL50" - 52"44" - 46"127 - 132 cm112 - 117 cm
3XL54" - 56"48" - 50"137 - 142 cm122 - 127 cm

Safety Boots & Footwear

Measure your foot length from heel to longest toe. For width, measure the widest part of your foot.

US Men'sUS Women'sUKEUFoot Length (inches)
78.56409.6"
89.57419.9"
910.584210.2"
1011.594310.6"
1112.5104410.9"
1213.5114611.3"
13-124711.6"

Safety Gloves

Measure around your dominant hand, just below the knuckles, excluding the thumb.

SizePalm Width (inches)Palm Width (cm)
XS6" - 7"15 - 18 cm
S7" - 8"18 - 20 cm
M8" - 9"20 - 23 cm
L9" - 10"23 - 25 cm
XL10" - 11"25 - 28 cm
2XL11" - 12"28 - 30 cm

Safety Glasses & Goggles

Safety eyewear is typically one-size-fits-most with adjustable features. Frame measurements are listed on the temple arm.

Lens Width

Distance across one lens. Standard: 55-60mm

Bridge Width

Distance between lenses. Standard: 16-20mm

Temple Length

Length of the arm. Standard: 125-145mm

Still Not Sure?

Our team is here to help you find the perfect fit.