T-Shirt Size Guide

Name: T-Shirt - I Smile
Brand: Happy Endings
SKU: 3011402_9527
Price: 35.0 USD
Availability: InStock
Rating: 4.97 (33 reviews)

Quick measurements + fit notes so you can grab the right size the first time.

Fit & sizing notes quick answers

Fit: True to size. Size up for an oversized fit.
Units: Measurements are shown below in inches and centimeters in separate charts for easier reading.
Note: Allow a small variance (about 1–2" / 2.5–5 cm) due to manufacturing tolerances.

How to measure (easy mode)

Lay a t-shirt you already like flat on a surface, then measure:

Width: across the body, 1" below the underarms (pit-to-pit).
Length: from the highest point of the shoulder down to the hem.
Chest: use the chest range below as a general body measurement guide.

T-Shirt sizing inches

Tip: for a roomier streetwear fit, size up and compare measurements to your favorite t-shirt.
Size	Length (in)	Width (in)	Chest (in)
XS	27	16.5	31–34
S	28	18	34–37
M	29	20	38–41
L	30	22	42–45
XL	31	24	46–49
2XL	32	26	50–53
3XL	33	28	54–57

T-Shirt sizing centimeters

Metric measurements are converted from the inch chart for easier international reference.
Size	Length (cm)	Width (cm)	Chest (cm)
XS	68.6	41.9	78.7–86.4
S	71.1	45.7	86.4–94.0
M	73.7	50.8	96.5–104.1
L	76.2	55.9	106.7–114.3
XL	78.7	61.0	116.8–124.5
2XL	81.3	66.0	127.0–134.6
3XL	83.8	71.1	137.2–144.8

Care tip: Cold wash + hang dry to help reduce shrink risk and keep the print looking fresh.

Still unsure?

If you’re between sizes: go up for a looser, streetwear fit, or stay true for a cleaner fit.

2XL

3XL

Description

Features our I Smile artwork with bold statement lettering and warm retro tones for a standout streetwear look. Made for car meets, late-night drives, garage days, and everyday wear, it’s an easy staple for anyone into playful graphics and warm energy.

Key Features

Soft, lightweight feel for comfortable daily wear
Pre-shrunk fabric
Unisex regular fit

Size & Details

Material: 99% ring-spun cotton / 1% polyester
Fit: Unisex regular fit
Fabric: Pre-shrunk
Production: Made to order

Fitment & Notes

Fit: True to size (size up for an oversized fit)
Production: Made especially for you when you place an order (on-demand production)
Care: Cold wash and hang dry recommended for lasting graphic quality
Impact: On-demand production helps reduce overproduction — thank you for making a thoughtful purchase

[{"id":48711816249568,"title":"XS","option1":"XS","option2":null,"option3":null,"sku":"3011402_9527","requires_shipping":true,"taxable":true,"featured_image":{"id":51964295512288,"product_id":9175028564192,"position":1,"created_at":"2026-02-01T13:45:26-08:00","updated_at":"2026-02-02T01:01:11-08:00","alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","width":2000,"height":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871","variant_ids":[48711816249568,48711816282336,48711816315104,48711816347872,48711816380640,48711816413408,48711816446176]},"available":true,"name":"T-Shirt - I Smile - XS","public_title":"XS","options":["XS"],"price":3500,"weight":102,"compare_at_price":null,"inventory_quantity":25,"inventory_management":"shopify","inventory_policy":"deny","barcode":"8508979810528","featured_media":{"alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","id":41303615275232,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":48711816282336,"title":"S","option1":"S","option2":null,"option3":null,"sku":"3011402_4016","requires_shipping":true,"taxable":true,"featured_image":{"id":51964295512288,"product_id":9175028564192,"position":1,"created_at":"2026-02-01T13:45:26-08:00","updated_at":"2026-02-02T01:01:11-08:00","alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","width":2000,"height":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871","variant_ids":[48711816249568,48711816282336,48711816315104,48711816347872,48711816380640,48711816413408,48711816446176]},"available":true,"name":"T-Shirt - I Smile - S","public_title":"S","options":["S"],"price":3500,"weight":130,"compare_at_price":null,"inventory_quantity":25,"inventory_management":"shopify","inventory_policy":"deny","barcode":"8509109842785","featured_media":{"alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","id":41303615275232,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":48711816315104,"title":"M","option1":"M","option2":null,"option3":null,"sku":"3011402_4017","requires_shipping":true,"taxable":true,"featured_image":{"id":51964295512288,"product_id":9175028564192,"position":1,"created_at":"2026-02-01T13:45:26-08:00","updated_at":"2026-02-02T01:01:11-08:00","alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","width":2000,"height":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871","variant_ids":[48711816249568,48711816282336,48711816315104,48711816347872,48711816380640,48711816413408,48711816446176]},"available":true,"name":"T-Shirt - I Smile - M","public_title":"M","options":["M"],"price":3500,"weight":142,"compare_at_price":null,"inventory_quantity":25,"inventory_management":"shopify","inventory_policy":"deny","barcode":"8509148241297","featured_media":{"alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","id":41303615275232,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":48711816347872,"title":"L","option1":"L","option2":null,"option3":null,"sku":"3011402_4018","requires_shipping":true,"taxable":true,"featured_image":{"id":51964295512288,"product_id":9175028564192,"position":1,"created_at":"2026-02-01T13:45:26-08:00","updated_at":"2026-02-02T01:01:11-08:00","alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","width":2000,"height":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871","variant_ids":[48711816249568,48711816282336,48711816315104,48711816347872,48711816380640,48711816413408,48711816446176]},"available":true,"name":"T-Shirt - I Smile - L","public_title":"L","options":["L"],"price":3500,"weight":164,"compare_at_price":null,"inventory_quantity":25,"inventory_management":"shopify","inventory_policy":"deny","barcode":"8509249286760","featured_media":{"alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","id":41303615275232,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":48711816380640,"title":"XL","option1":"XL","option2":null,"option3":null,"sku":"3011402_4019","requires_shipping":true,"taxable":true,"featured_image":{"id":51964295512288,"product_id":9175028564192,"position":1,"created_at":"2026-02-01T13:45:26-08:00","updated_at":"2026-02-02T01:01:11-08:00","alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","width":2000,"height":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871","variant_ids":[48711816249568,48711816282336,48711816315104,48711816347872,48711816380640,48711816413408,48711816446176]},"available":true,"name":"T-Shirt - I Smile - XL","public_title":"XL","options":["XL"],"price":3500,"weight":170,"compare_at_price":null,"inventory_quantity":25,"inventory_management":"shopify","inventory_policy":"deny","barcode":"8509289021567","featured_media":{"alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","id":41303615275232,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":48711816413408,"title":"2XL","option1":"2XL","option2":null,"option3":null,"sku":"3011402_4020","requires_shipping":true,"taxable":true,"featured_image":{"id":51964295512288,"product_id":9175028564192,"position":1,"created_at":"2026-02-01T13:45:26-08:00","updated_at":"2026-02-02T01:01:11-08:00","alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","width":2000,"height":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871","variant_ids":[48711816249568,48711816282336,48711816315104,48711816347872,48711816380640,48711816413408,48711816446176]},"available":true,"name":"T-Shirt - I Smile - 2XL","public_title":"2XL","options":["2XL"],"price":3500,"weight":201,"compare_at_price":null,"inventory_quantity":25,"inventory_management":"shopify","inventory_policy":"deny","barcode":"8509528156036","featured_media":{"alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","id":41303615275232,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":48711816446176,"title":"3XL","option1":"3XL","option2":null,"option3":null,"sku":"3011402_5295","requires_shipping":true,"taxable":true,"featured_image":{"id":51964295512288,"product_id":9175028564192,"position":1,"created_at":"2026-02-01T13:45:26-08:00","updated_at":"2026-02-02T01:01:11-08:00","alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","width":2000,"height":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871","variant_ids":[48711816249568,48711816282336,48711816315104,48711816347872,48711816380640,48711816413408,48711816446176]},"available":true,"name":"T-Shirt - I Smile - 3XL","public_title":"3XL","options":["3XL"],"price":3500,"weight":213,"compare_at_price":null,"inventory_quantity":25,"inventory_management":"shopify","inventory_policy":"deny","barcode":"8509550636681","featured_media":{"alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","id":41303615275232,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":48711816249568,"title":"XS","option1":"XS","option2":null,"option3":null,"sku":"3011402_9527","requires_shipping":true,"taxable":true,"featured_image":{"id":51964295512288,"product_id":9175028564192,"position":1,"created_at":"2026-02-01T13:45:26-08:00","updated_at":"2026-02-02T01:01:11-08:00","alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","width":2000,"height":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871","variant_ids":[48711816249568,48711816282336,48711816315104,48711816347872,48711816380640,48711816413408,48711816446176]},"available":true,"name":"T-Shirt - I Smile - XS","public_title":"XS","options":["XS"],"price":3500,"weight":102,"compare_at_price":null,"inventory_quantity":25,"inventory_management":"shopify","inventory_policy":"deny","barcode":"8508979810528","featured_media":{"alt":"Black t-shirt with yellow text 'THANK YOU FOR BEING THE REASON I SMILE' ","id":41303615275232,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.happyendingsofficial.com\/cdn\/shop\/files\/t-shirt-i-smile-happy-endings-3981824.png?v=1770022871"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

Currency

T-Shirt - I Smile

Fit & sizing notes quick answers

How to measure (easy mode)

T-Shirt sizing inches

T-Shirt sizing centimeters

Still unsure?