My CUSTOM DESIGNED athletic support crew apparel will help you be RACE DAY ready!
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Announcement
Last updated on Jan 6, 2026
Reviews
4.9
(1036)
Average item review
We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.
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Mary on Oct 19, 2026
5 out of 5 starsLove this crew sweatshirt. Can’t wait to wear while I support my daughter! Fit is true to size and perfect! Seller answered all my questions ahead of sale so kindly. Would recommend 10/10.
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Jack on Oct 4, 2026
5 out of 5 starsI really appreciate that the seller reached out with the proof before proceeding with the order.
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Karyne on Sep 21, 2026
5 out of 5 starsAbsolutely beautiful!! Just like the picture on the website!! The customer service is outstanding!! Great communication beautiful service!! Very very please with this purchase!! The size fits perfect!! Design well made!! Five stars
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Janet on Oct 16, 2026
5 out of 5 starsSeller was quick to send me a preview of my order and super fast shipping. This is my second order and I will definitely be back.
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About BoyhoodThreads
Sales
8,019
On Etsy since 2023
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🏃♀️ Designed by a Real Runner. Every item is created by Katie — a marathoner, race-day supporter, and mom. -
We design for the families and friends who make race day possible. Matching options for adults, kids, and even pets! -
Custom Triathlon Crew designs available in all family sizes! Check out our options or request a custom design! -
Designs available for all World Major Marathons! Order custom matching support crew hats to really stand out! -
All designs now available for your pet to match!
Shop about video description
Shop members
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Katie
Owner
Ultra Marathon x 1 Half Ironman x 1 Sprint Triathlon x 3 Marathon x 9 Half Marathon x 2 Mom to 3 boys I have a passion for running and cozy sweatshirts! Other Etsy shop: Harvest and Anchor Co.
Production partners
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A print shop
United States
They print and ship my items so I can focus on creating new designs.
Shop policies
Last updated on Aug 20, 2024
Shipping
See item details for estimated arrival times.
Customs and import taxes
For US deliveries, Etsy policy requires that import duties and fees are included in the checkout price. Non-US buyers may need to pay these fees upon delivery. You can message me to confirm how these fees will be paid for your order. I'm not responsible for any customs-related delays.
Digital downloads
Instant downloads
Your files will be available to download once payment is confirmed. Here's how.
Payment options
Secure options
Accepts Etsy Gift Cards and Etsy Credits
Etsy keeps your payment information secure. Etsy shops never receive your credit card information.
Returns & exchanges
See item details for return and exchange eligibility.
Cancellations
Cancellations: accepted
Request a cancellation: within 2 hours of purchase
More information
Last updated on
Jul 6, 2026
Frequently asked questions
How to order
+ You must order each shirt size individually!
+ Select the size and color you would like to order, ADD PERSONALIZATION and ADD TO CART
+ Select the next size and color and ADD TO CART
+ Go to your cart and check out where you’ll find all the options you added
Size and Fit
+ See the sizing chart in the product images to find what size would fit best.
+ Lay your favorite shirt at home flat and measure armpit to armpit to compare to the size chart in the photos.
Care Instructions
+ Wash inside out in cold water, gentle cycle.
+ No bleach or fabric softeners.
+ Tumble dry low or air dry.
+ Do not dry clean.
+ Do not iron directly on the design.
Returns / Exchanges
+ All of our shirts are custom-printed just for you so we do not accept returns or exchanges.
+ However, if there are any issues with your order, please message me ASAP and I’ll do my best to make it right!
+ Please include a photo of any printing issues with the size tag visible and if you would like a reprint or refund
👉 PLEASE NOTE: Due to lighting, monitor/device differences, and production variations, colors may vary slightly from what appears online.
Printing and Shipping Timelines
👉 PRINTING TIMEFRAME: 1-5 business days
👉 STANDARD SHIPPING TIMEFRAME: 2-5 business days
👉 PRIORITY SHIPPING TIMEFRAME: 2-3 business days
👉 EXPRESS SHIPPING TIMEFRAME: 2-3 business days including printing time! Ask me if your order qualifies for this!
*Boyhood Threads is not responsible for delays caused by the shipping carrier.
Questions or Concerns?
Happy to help! Please feel free to reach out via Etsy messages.
Thank you for supporting my small business! - Katie
Why shop with Boyhood Threads?
+ Original Designs from a Real Runner’s Family
Every design is thoughtfully created by me—Katie!—a fellow race-day supporter, mom, and small business owner. You won’t find this heart or detail in the copycats.
+ Custom Options You Won’t Find Anywhere Else
From names and dates to team colors and photo uploads—we make it truly personal. We love helping you celebrate your runner in a meaningful way.
+ Unmatched Quality & Care
We use premium tees, high-quality printing, and partner with reliable printers to ensure your gear looks and feels amazing on race day.
+ Fast, Friendly Support
Need help? Have questions? I'm here every step of the way to make your order stress-free.
Are the people shown in your listing photos real?
+ Some listing photos may feature AI-generated models or backgrounds to help visualize the product. The design, colors, and product details shown accurately represent the item you will receive.