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Not So Basic Birthday

Birthday T-Shirt

Birthday Headshot

$24.98

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Discount0%15%20%25%30%35%

Headshot Savings

0%off

Add a 1st t-shirt for 0% off your full order

15%off

Add a 2nd t-shirt for 15% off your full order

20%off

Add a 3rd t-shirt for 20% off your full order

25%off

Add a 4th t-shirt for 25% off your full order

30%off

Add a 5th t-shirt for 30% off your full order

35%off

Add a 6th t-shirt for 35% off your full order

Size Guide

Size6M12M18M2T3T4TYouthXSYouthSYouthMYouthLYouthXLAdultSAdultMAdultLAdultXLAdult2XLAdult3XLAdult4XLAdult5XL
Youthsize4/56/810/1214/1618/20
Width10"10.5"11"12"13"14"14.5"15.5"16.5"17.5"18.5"18"20"22"24"26"28"30"32"
Length12.5"13"13.5"15"16"17"19"20"22"23.5"25"28"29"30"31"32"33"34"35"

Youth sizes are clothing size labels, not ages. For the best fit, compare the width and length with a shirt that fits.

T-shirt diagram showing width and length measurement directions.

Sizing Tips

  • Measure your best-fitting shirt flat for the most accurate width and length.
  • If you're between sizes, choose the larger size for a looser fit.
  • Width is measured across the chest one inch below armpit when laid flat.
  • Length is measured from high point of shoulder to finished bottom hem.

Size guide

Compare with a shirt that fits, measured flat. All measurements are in inches.

Scroll sideways to see all sizes →

Size6M12M18M2T3T4TYouthXSYouthSYouthMYouthLYouthXLAdultSAdultMAdultLAdultXLAdult2XLAdult3XLAdult4XLAdult5XL
Youth size4/56/810/1214/1618/20
Width10"10.5"11"12"13"14"14.5"15.5"16.5"17.5"18.5"18"20"22"24"26"28"30"32"
Length12.5"13"13.5"15"16"17"19"20"22"23.5"25"28"29"30"31"32"33"34"35"

Youth sizes are clothing size labels, not ages. For the best fit, compare the width and length with a shirt that fits.

Measure shirt width across the chest and length from shoulder to hem.

Measure your best-fitting shirt

Width: across the chest, one inch below the armpit, with the shirt laid flat.

Length: from the high point of the shoulder to the bottom hem.

Between sizes? Choose the larger size for a looser fit.