Chest Measurement half-chest and across-chest measurement

The measurement is obtained by laying the t-shirt (hoodie, shirt or other top) flat on a flat surface.

How to Measure Chest Size

How to Find Your T-Shirt Measurements

Nike.com Size Fit Guide - Preschool Kids' Tops

PMG Schoolwear - Size Guide

How to Get Your Correct Size - Fashion & Homecraft

Chest Measurement half-chest and across-chest measurement

Sizing

Chest measurement - Women

How To Measure Your Body: Chest

How To Measure Chest Size

Size converter - Pirates Cave

Size Guide: How To Measure Yourself for a Jacket - The Jacket Maker Blog