What Size Lab Coat Does a Year 11 Student Need? (Parent's Guide)

For a Year 11 student, the short answer is: most fit an L (60cm chest, 107cm length) lab coat. Our Sizing Chart maps L to Year 11–12 — by senior school, most students have moved past the middle sizes and into the L range, where many stay through to graduation.

Confirming L Is Right (2 Minutes, No Measuring Tape)

Compare a garment your child already wears over other clothes — a school blazer is ideal if they have one:

1. Lay it flat on a table
2. Measure armpit to armpit (chest) and top of collar to hem (length)
3. Match the numbers to the Sizing Chart — every size from XXS to 3XL, plus sleeve measurements

• L (60cm chest, 107cm length) fits most Year 11 students
• M (58cm chest) if your child is smaller-framed — plenty of Year 11s still wear it comfortably
• XL (63cm chest, 110cm length) for tall students whose sleeves sit above the wrist bone in the L

Between sizes? Go up, not down — a lab coat is made to fit loose.

Why Fit Matters More in Year 11

Senior chemistry and biology classes involve longer practicals with real reagents — more pouring, more reaching, more writing while wearing the coat. The fit points that matter:

• Sleeves sit just past the wrist bone, protecting the forearm without hanging over the hands
• The coat fastens without pulling across the chest, worn over a school shirt
• Hem at or just above the knee, covering the uniform underneath

If you're choosing cuff style as well as size, our guide to elastic vs traditional cuffs explains the difference — elastic cuffs hug the wrist, which many senior science students prefer for exactly these reasons.

Check Your School's Booklist First

If your school is supplied by us, its page on Booklisted Schools shows the exact coat, colour, and size range the school has chosen — many schools specify sizes by year level, which beats any estimate.

Common Parent Questions

My child is tall — should I jump straight to XL?

Check the Sizing Chart first rather than guessing by height: XL (63cm chest, 110cm length) suits taller senior students, but a well-fitting L lasts many students to Year 12. The garment-comparison method above settles it in two minutes.

Is the Year 11 coat the same one they'll wear at uni?

It can be — the coat is the same adult-cut lab coat (XXS to 3XL) that university students and workplaces buy. If your child is heading into tertiary science, a Year 11–12 coat that still fits comfortably can absolutely follow them to first-year labs. Our article do you need a lab coat at uni? covers what university science actually requires.

How much does a Year 11 lab coat cost?

$24 ex GST in white, $27 in navy, every size at the same price — XL costs no more than L.

What if I get the size wrong?

Free size exchanges within 7 days — details on our Returns & Exchanges page.

Where to Next

Browse the Shop, check Booklisted Schools, or read the complete guide: What Size Lab Coat Does My Child Need? (Year 7–12). Sizing questions? Contact us — we're happy to help.