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Choose the Line You Stand Behind - Shop by Collection
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Thin Blue Line - Law Enforcement
14 Items
Thin Red Line - Fire Service
16 Items
Thin Green Line - Military & Federal Agent
11 Items
Thin White Line - Emergency Medical Services
14 Items
Thin Silver Line - Corrections Officer
11 Items
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Thin Orange Line: Search and Rescue
7 Items
Thin Purple Line - Private Security
8 Items
Thin Yellow Line - Emergency Dispatchers
9 Items
Blue Collar Americans
23 Items
American Flag Collection
30 Items
Mission Tees: Service Never Ends—and Neither Does Support.
These shirts don’t just represent the line—they support the ones who walk it on four legs.
Each design in our Mission Collection backs a different organization dedicated to working K9s and their handlers. From retired heroes who need medical care and forever homes, to active-duty dogs who need vests in the fight, to service dogs being trained for veterans battling PTSD—this is gear with purpose.
You’re not just buying a shirt.
You’re backing a cause, honoring a legacy, and standing up for those who never stop serving.
Wear the mission. Support the K9s. No fluff. No apologies.
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Testimonial
I love the mission behind Thin Line K9— honoring the heroes who serve, on two legs and four.
Koda may have fur, but he wears his badges with pride. He serves me every single day as my service dog — with loyalty, strength, and heart.❤️
Proud to stand beside this collab that recognizes all forms of service. 🐾🎖️
Testimonial
We loved our bandanas. They fit perfect and are made of quality materials. Definitely my favorite bandanas for my pup.
Testimonial
Awesome clothing and accessories. Thin Line K9 is our first stop when searching for patriotic gear for both us and our K9s.
