Quick answer
Sew Large Black + Cream Tortoise Heart Buttons onto a cardigan using a shank-style thread stem and reinforced thread for a secure, lasting hold.
Why choose these heart buttons for your cardigan
Large 1" Black + Cream Tortoise Shell Heart Buttons add a playful yet neutral accent to any cardigan. Made from eco-friendly cellulose acetate, they are lightweight and durable, making them a great choice for button-front garments that see regular use. The speckled tortoise design pairs well with solid-colored knits and woven cardigans alike.
What you need to know before you start
These buttons are sold in packs of 6, which is enough for most cardigan fronts. Because they are 1" wide, check that your cardigan's buttonholes are large enough to accommodate the button diameter. If the holes are too small, you may need to carefully enlarge them with a seam ripper or choose the smaller 5/8" version instead.
How to sew large heart buttons on a cardigan
- Mark button placement: Button the cardigan and use a fabric pencil or tailor's chalk to mark where each button should sit. For cardigans, the left front edge typically holds the buttons; the right front has the buttonholes. Double-check alignment by closing the cardigan and marking through the buttonhole center.
- Thread your needle and knot the end: Use a strong thread like polyester or cotton-wrapped polyester. Double the thread and knot the ends together. A single strand with a knot is also fine, but doubled thread is more secure. Avoid waxed thread—it can leave residue on the button surface.
- Create a thread shank for thickness: Insert the needle from the wrong side of the fabric through the buttonhole and back down through the opposite hole. Leave about 1/8 inch of slack between the button and fabric. Repeat 4-6 times, then wrap the thread around the slack to form a shank. A shank keeps the button from pulling tight against the fabric, allowing the cardigan to button smoothly.
- Secure and finish: Pass the needle through the shank a few times, then make a small knot close to the fabric. Trim the thread close to the knot. Test the button by buttoning and unbuttoning the cardigan once before trimming the final thread.
Product facts
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Large Black + Cream Tortoise Heart Buttons: Large 1" Black + Cream Tortoise Shell Heart Buttons made from eco-friendly cellulose acetate, sold in packs of 6. The 1" size is ideal for cardigan fronts, and the cellulose acetate material is lightweight and durable for repeated buttoning.
Large Black + Cream Tortoise Heart Buttons
