KOPPEN Size Chart
| KOPPEN Men's Size Chart | S | M | L | XL | XXL |
| Chest | 35"-37" | 38"-40" | 41"-43" | 44"-46" | 47"-50" |
| Waist | 29"-31" | 32"-34" | 35"-37" | 38"-40" | 41"-44" |
| Hip | 34"-36" | 37"-39" | 41"-42" | 43"-44" | 45"-46" |
| Neck | 14.25"-14.75" | 15"-15.5" | 15.75"-16.25" | 16.5"-17" | 17.25"-17.75" |
| Sleeve | 32.5"-33" | 33.5"-34" | 34.5"-35" | 35.5"-36" | 36.5" |
| Regular Inseam | 32" | 32" | 32" | 32" | 32" |
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| KOPPEN Women's Size Chart | XS | S | M | L | XL |
| Size | 2 | 4-6 | 8-10 | 12-14 | 16-18 |
| Bust | 32.5" | 33.75"- 35" | 36.25"-37.5" | 39"-40.5" | 42"-43.5" |
| Waist | 25.25" | 26.5"-27.75" | 29"-30.5" | 32"-33.5" | 35"-36.5" |
| Hip | 35.5" | 36.75"-38" | 39.25"-40.5" | 42"-43.5" | 45"-46.5" |
| Regular Inseam | 31" | 31" | 31" | 31" | 31" |
| Long Inseam | 33" | 33" | 33" | 33" | 33" |
| Short Inseam | 29" | 29" | 29" | 29" | 29" |
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| KOPPEN Boys' Size Chart | XS (6-8) | S (8-10) | M (10-12) | L (14-16) | XL (18-20) |
| Chest | 25"-26" | 26"-28" | 29"-31" | 32"-34" | 35"-37" |
| Waist | 22"-24" | 24"-25" | 25"-27" | 27"-29" | 29"-31" |
| Hip | 25"-27" | 27"-29" | 29"-31" | 31"-33" | 33"-35" |
| Height | 48"-51" | 53"-56" | 58"-61" | 63"-66" | 67"-70" |
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| KOPPEN Girls' Size Chart | XS (6-8) | S (8-10) | M (10-12) | L (12-14) | XL (18-20) |
| Chest | 25"-26" | 26"-28" | 28"-30" | 30"-32" | 32"-34" |
| Waist | 22"-23" | 23"-24" | 24"-25" | 25"-26" | 26"-27" |
| Hip | 26"-27" | 28"-30" | 30"-32" | 33"-34" | 35"-36" |
| Height | 47"-50" | 51"-54" | 55"-58" | 59"-62" | 63"-65" |
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Apparel Sizing Tips:
Use these tips as a general guide when finding your measurements:
Chest/Bust: With your arms at your sides, measure around the fullest part of your chest, across shoulder blades and under arms.
Waist: To measure your natural waistline, wrap the tape so it intersects your navel. Keep tape flat, but comfortably loose.
Hips: Stand with your heels together and measure the fullest part of your hips. Make sure the measuring tape is level all the way around your body.
Inseam: Stand up straight, and start the tape measure high in your crotch. Straighten the tape down the inside of your leg to the bottom of your ankle.
