Promotion Terms
15% OFF Your First Order
Valid: Code expires 30 days after sign-up unless otherwise stated.
Discount: 15% off your first order when you join the SUM SHIRTS email or SMS list.
Code: Unique one-time code sent to the subscriber’s inbox or phone.
Terms:
Exclusions: Cannot be applied to gift cards, wholesale, or previous purchases.
Limit: One use per customer; cannot be combined with other discounts.
Other Terms: By subscribing, you agree to receive marketing emails or texts from SUM SHIRTS. Standard text/data rates may apply.
🎁SUMDAY SURPRISE
Valid: Every Sunday @ 9am EST to Monday 9am EST
Discount: Whatever Crazy Discount Our Marketing Comes Up With
Terms:
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Discount automatically applied at checkout (no code required).
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Applies to all in-stock items unless otherwise noted.
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Cannot be combined with other discount codes, offers, or promotions.
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Discount does not apply to gift cards or previous purchases.
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Returns/exchanges for discounted items follow our standard policy.
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Offer valid while supplies last.
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SUM SHIRTS reserves the right to modify or cancel this promotion at any time.
FREE TEE FRIDAY
Valid: Every Sunday @ 9am EST to Monday 9am EST
Discount: One free T-shirt given away every Friday.
Winner Announced: Fridays @ 10am Every Week
How to Enter:
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Follow @sum_shirts on Instagram or Sum Shirts on Facebook
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Like AND comment on any SUM SHIRTS post from the past 7 days.
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No purchase necessary.
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Optional bonus entries may be offered for sharing/select actions if noted in that week’s post.
Winner Selection:
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One winner chosen randomly each week unless otherwise specified.
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Additional winners may be selected as promoted.
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For example: Milestone follower weeks (e.g., 500, 750, 1000)
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Winners will be contacted via Instagram/Facebook DM.
Prize Details:
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One (1) free SUM SHIRTS Unisex, Women's or Youth T-shirt
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Prize tees are final sale and cannot be exchanged.
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U.S. shipping covered by SUM SHIRTS.
Additional Notes:
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Giveaway is not sponsored or endorsed by Instagram or Facebook.
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Entrants must comply with Instagram & Facebook community rules.
Cyber Monday Storewide 20% Off
Valid: December 1 – December 2, 2025
Discount: 20% off the entire SUM SHIRTS store.
Terms:
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Discount automatically applied at checkout (no code required).
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Applies to all in-stock items unless otherwise noted.
-
Cannot be combined with other discount codes, offers, or promotions.
-
Discount does not apply to gift cards or previous purchases.
-
Returns/exchanges for discounted items follow our standard policy.
-
Offer valid while supplies last.
-
SUM SHIRTS reserves the right to modify or cancel this promotion at any time.