Blue crewneck sweatshirt with small chest text design

My Sister Knows Too Much Sweatshirt | Funny Sister Gift Jumper UK

Charcoal / S
£23.50
£23.50
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Blue crewneck sweatshirt with small chest text design
  • Blue crewneck sweatshirt with small chest text design
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  • Dark gray crewneck sweatshirt with small chest text, worn by a model
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My Sister Knows Too Much Sweatshirt | Funny Sister Gift Jumper UK

My Sister Knows Too Much Sweatshirt | Funny Sister Gift Jumper UK

£23.50
£23.50
Taxes included. Shipping calculated at checkout.
Details

If your sister knows where all the bodies are buried (metaphorically speaking), this sweatshirt is for her.

You know the one. The sister who remembers every embarrassing thing you've ever done, knows all your passwords, and could absolutely ruin you if she wanted to. But she won't. Probably. This sweatshirt is a love letter to that chaotic, beautiful sibling bond where secrets are currency and loyalty runs deep.

Why she'll actually wear it:
The slogan is funny without trying too hard, the design is clean and minimal (goes with everything), and it's the kind of gift that says "I get you" without being soppy about it.

What makes it special:
✔ Soft, comfortable unisex fit that feels like a hug
✔ Minimalist slogan design (no loud graphics, just good vibes)
✔ Printed to order in the UK to reduce waste
✔ Perfect for lazy Sundays, coffee runs, or just existing
✔ Gift-ready without being too precious about it

Perfect for:
Sister birthdays, Christmas gifts, "just because" moments, or honestly? Buy one for yourself if you're the sister who knows too much. You've earned it.

The details:
Made from soft cotton-blend fabric, unisex sizing (check the size guide), and printed with high-quality materials that won't fade after a few washes. Each sweatshirt is made to order, so please allow 5-7 days for us to create yours before dispatch.

Because the best gifts are the ones that make people laugh and feel seen at the same time.

Ready to make your sister smile? Pick your size and let's get this sorted.
Materials + Care

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.
Shipping + Returns

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.

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