For clothing: the size chart of this product is available in the product images (above)
We advise you to measure an already owned Hoodie or T-shirt flat on a table and compare the outcome with our size charts.
A - Armpit to Armpit (front)
B - Neck to Waist (front)
C - Top of Shoulder - Hand (front)
In case of any doubt - it's always better to order one size up.
Feel free to contact us in case of any questions.