Size Guide

Find your perfect fit! All measurements are in inches (centimetres in brackets). If you're between sizes, we recommend sizing up for a more relaxed fit.

Below are our measurements for Adults, Child/Youth, Toddlers and Babies.


Adult Unisex T-Shirts

Our adult t-shirts feature a classic unisex fit. Measurements are taken with the garment laid flat.

Adult T-Shirt Measurement Diagram
Size Chest Length
Small (S) 18" (46 cm) 28" (71 cm)
Medium (M) 20" (51 cm) 29" (74 cm)
Large (L) 22" (56 cm) 30" (76 cm)
X-Large (XL) 24" (61 cm) 31" (79 cm)
2X-Large (2XL) 26" (66 cm) 32" (81 cm)
3X-Large (3XL) 28" (71 cm) 33" (84 cm)
4X-Large (4XL) 30" (76 cm) 34" (86 cm)
5X-Large (5XL) 32" (81 cm) 35" (89 cm)
6X-Large (6XL) 34" (86 cm) 36" (91 cm)

Child/Youth T-Shirts

Our children's t-shirts are designed for active kids. Measurements are taken with the garment laid flat.

Size Chest Length Age Range
2T 12" (30 cm) 15" (38 cm) 2–3 years
3T 13" (33 cm) 16" (41 cm) 3–4 years
4T 14" (36 cm) 17" (43 cm) 4–5 years
Child Small 15" (38 cm) 19" (48 cm) 6–8 years
Child Medium 16" (41 cm) 21" (53 cm) 8–10 years
Child Large 17" (43 cm) 23" (58 cm) 10–12 years
Child XL 18" (46 cm) 25" (64 cm) 12–14 years

Adult Hoodies

Our adult hoodies feature a relaxed unisex fit. Measurements are taken with the garment laid flat.

Size Chest Length
Small (S) 20" (51 cm) 27" (69 cm)
Medium (M) 22" (56 cm) 28" (71 cm)
Large (L) 24" (61 cm) 29" (74 cm)
X-Large (XL) 26" (66 cm) 30" (76 cm)
2X-Large (2XL) 28" (71 cm) 31" (79 cm)
3X-Large (3XL) 30" (76 cm) 32" (81 cm)
4X-Large (4XL) 32" (81 cm) 33" (84 cm)
5X-Large (5XL) 34" (86 cm) 34" (86 cm)
6X-Large (6XL) 36" (91 cm) 35" (89 cm)

Child/Youth Hoodies

Our children's hoodies are cozy and comfortable. Measurements are taken with the garment laid flat.

Size Chest Length Age Range
2T 13" (33 cm) 16" (41 cm) 2–3 years
3T 14" (36 cm) 17" (43 cm) 3–4 years
4T 15" (38 cm) 18" (46 cm) 4–5 years
Child Small 16" (41 cm) 20" (51 cm) 6–8 years
Child Medium 17" (43 cm) 22" (56 cm) 8–10 years
Child Large 18" (46 cm) 24" (61 cm) 10–12 years
Child XL 19" (48 cm) 26" (66 cm) 12–14 years

Toddler Size Guide

Sized for little ones on the move. Measurements are taken with the garment laid flat.

Measurement Size 2 Size 3 Size 4 Size 5/6 Size 7
Sleeve Length 4¾" (12 cm) 5" (13 cm) 5¼" (13 cm) 5½" (14 cm) 5¾" (15 cm)
Body Width 12" (30 cm) 13" (33 cm) 14" (36 cm) 15" (38 cm) 16" (41 cm)
Body Length 15½" (39 cm) 16½" (42 cm) 17½" (44 cm) 18½" (47 cm) 19½" (50 cm)

Baby/Infant Onesie Size Guide

Soft and snug for your littlest ones. Measurements are taken with the garment laid flat.

Measurement Newborn 6M 12M 18M 24M
Sleeve Length 2½" (6 cm) 2¾" (7 cm) 3" (8 cm) 3¼" (8 cm) 3½" (9 cm)
Body Width 7½" (19 cm) 9" (23 cm) 10" (25 cm) 11" (28 cm) 12" (30 cm)
Body Length 16" (41 cm) 17" (43 cm) 18" (46 cm) 19" (48 cm) 20" (51 cm)

How to Measure

Chest / Body Width: Measure across the chest from armpit to armpit with the garment laid flat.

Length / Body Length: Measure from the highest point of the shoulder to the bottom hem.

Sleeve Length: Measure from the shoulder seam to the end of the sleeve.

Need help? Contact us at info@goodonu.ca and we'll help you find your perfect fit!