These aren't your average tees. We print exclusively on genuine Comfort Colors® — heavyweight, garment-dyed, 100% ring-spun cotton that's soft from the very first wear and only gets better with age. Built to last for years, not just washes.
★★★★★ 3,100+ Five-Star Reviews
Real People, Real Service
That's us — Chris and Rachel. When you email Isle & Glen, one of us personally reads it and replies. Quick answers, honest help, and if anything's not right with your order, we'll make it right. Consider us family.
Located in the U.S.A. 🇺🇸
Family-Owned Small Business
Isle & Glen is a truly small business — one family and a few helping hands. Every design is our own, and every shirt is printed to order and shipped right here in the USA. When you buy from us, you're supporting a small American shop.
Customer Reviews
Overall rating: 5.0 / 5 from 11 reviews.
Love the t-shirt!! They run large so 3X was way too big on my friend but going to order another in 2X and give the 3X to another Irishman I know. Thanks Triangle Threads
Imagine my surprise when Triangle Threads Instagram ad appeared and I recognized Minard’s Castle on the Dingle tee. The second photo is the view of Minard’s from the Kilmurry Bay Airbnb where I stayed in mid-May this year. Your tee makes me smile and remember! Thank you!
We stayed in Dingle while on vacation with friends. Just loved that area. First time in Ireland and glad we landed there. When I saw these Tshirts I bought one for me and my sister. Brought back so many great memories. Thank you
I love these shirts. Bought 1 to try out and it was wonderful. Very soft and comfortable. The letters do not crinkle up. Bought 4 more because my husband loves them too. Going to get more for myself and relatives too.
Thanks to this business for putting good quality out there.
Sizing can be tricky, so there's a full measurements chart on every product page. Because Comfort Colors are garment-dyed and preshrunk, we recommend sizing up if you're between sizes or just prefer a roomier, lived-in fit. Our tees come in S–4XL.
What are the shirts made of?
We print on Comfort Colors 1717 — the heavyweight, garment-dyed, 100% ring-spun cotton tee that's considered the gold standard for vintage-feel shirts. Soft from day one, preshrunk, and made to get better with every wear.
Where are your shirts printed?
Right here in the USA. Every shirt is printed to order and ships from within the US, so nothing sits in an overseas warehouse or travels across the world to reach you.
Are Triangle Threads and Isle & Glen the same?
Yes — same company, same two people, same shop. Isle & Glen is simply the new name.
Triangle Threads is where we started. We began by designing shirts for America’s National Parks and the wild places we love to explore.
Ireland and Scotland were always our other great passion, and somewhere along the way that passion took over and became the full-time thing. Isle & Glen grew out of it.
So if you spot Triangle Threads on a package, an email, or somewhere on this site — that’s still us. Same family, same care, same shop. Just a name that finally matches what we love making most.
How long until my order arrives?
Every shirt is printed to order just for you. Orders usually ship within a few business days, and delivery takes another 3-5 business days — most land on your doorstep within a week. Shipping is always free on orders over $75.
Can I change or cancel my order?
Yes, within 24 hours of placing it. Every shirt is printed to order, so after that it's usually already in production. Just email us at support@isleandglen.co with your order number and what you'd like to change.
What if it's not right?
If anything arrives damaged, defective, or just not quite right, email us at support@isleandglen.co within 30 days and we'll make it right with a replacement or a refund — no questions asked.