Attach Sleeves and Sew Side seams (All Variations)
  
This is my favorite way to attach sleeves and can be done with almost every kind of sleeve (even a woven set in sleeve!) 
  
Open up one armhole edge of the shirt with the right side facing up. With right sides together and notches aligned, match the corresponding sleeve to the armhole. Stitch the sleeve to the armhole at 5/8" using a zig-zag, stretch stitch or serge.
  
Now, match the entire front and back side seam and underarm edges together. In one long seam, stitch the underarm and side seams together at 5/8" using a zig-zag, stretch stitch, or serge.
  
  
Variation 1 Finish Sleeve
  
Since I am using a thicker and sturdier knit for my polo shirt, I decided to use ribbing for my sleeve cuffs. If you are using a lighter weight or very stretchy knit fabric you could use self fabric for your sleeve cuff.
  
Fold the sleeve cuff right sides together matching the short edges. Stitch the short edges together at 5/8" using a straight stitch or serge.
  
  
Turn the sleeve cuff right side out. Now, fold the cuff in half matching the long edges, with wrong sides together. 
  
With right sides together match the sleeve cuff to the sleeve opening, aligning the underarm and cuff seams. Stretch the cuff to fit the sleeve opening. 
  
  
Stitch together at 5/8" using a zig-zag, stretch stitch or serge.
  
 
All Variations: Hem
  
We are now at the final step to complete your Polo shirt!
  
Once again, due to my sturdy and thick knit fabric, I decided to do a single fold and stitch method for finishing my hem.
  
First, I serged around the entire bottom of my hem
  
  
Next, I pressed my hem to the wrong side at 1" and pinned in place.
  
  
From the right side of my fabric I stitched a single straight stitch 3/4" up from the folded edge of my hem. If you have a twin needle, you could stitch this part with your twin needle for a more ready to wear look! Be careful to not pull or stretch your fabric as you are stitching the hem in place.
  
  
Another method for finishing the hem is a double fold method. First, fold the raw edge to the wrong side at 3/8". Then, fold again up at 5/8". Give the hem a good press and pin in place. To finish the hem, use a zig-zag or stretch stitch to edgestitch along the top folded edge. 
  
Your Sombrio Polo is now ready to be worn! Congrats! Feel free to share your photos on social media using #sombriopolo or email us at info@threadtheory.ca. We would love to see what you've made!
August 20, 2024 — Morgan and Matthew Meredith