OLD GRUMPS RULE™ – My Granddaughter Is My Kryptonite Long Sleeve Tee

He’s tough as nails — except when she shows up.

This Old Grumps Rule™ long sleeve tee says it all: even the grumpiest man has a weakness, and she’s usually holding his hand or stealing his snacks. Made for grandpas who wear their sarcasm like armor but melt the moment their granddaughter smiles.

Built with premium comfort and a classic fit, this long sleeve shirt is perfect for cool mornings, coffee runs, and every granddad who swears he’s not soft (but everyone knows better).

Perfect For:

• Grandpas who say “I’m not grumpy — I’m just right”

• Father’s Day, birthdays, or any “just because” gift

• Men who know their granddaughter is their kryptonite

⚠️ Warning: May cause spontaneous smiles and unsolicited hugs.

• Premium cotton/poly blend for comfort and durability

• Classic unisex fit — perfect for layering or lounging

• Ribbed cuffs, double-stitched seams, soft-hand print

• Designed & printed in the USA