1203 designs from one label$3.86 to $27.28Sizes read from shoe size, not sock size
ZmartSock catalog
30th Birthday Socks

Hobbies & Fandom

30th Birthday Socks

4.9 (62)

Party hats, wrapped presents, and floating balloons cover the upper half of this crew pair. Kick your shoes off and the bottom spells out the real truth: I M NOT 30, I M 29+1. It suits anyone crossing the thirty line who prefers to count differently.

$5.99In stock at the retailer

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Price$5.99
Rating4.9 out of 5 from 62 buyers
AvailabilityIn stock at the retailer
Full listing nameZmart 30th Birthday Socks - 30 Year Old Birthday Gifts for Men & Women

Reading the listing

What to check before you buy this pair

Hidden sole message

The upper leg shows party favors while the bottom of the foot carries the text I M NOT 30, I M 29+1. The letters stay hidden inside shoes and show clearly when feet go up on a coffee table.

Cotton blend fabric

Knit from 80 percent cotton, 15 percent polyamide, and 5 percent elastane. The fabric stays soft against the skin, breathes through long days, and holds enough stretch to pull over the heel without sagging around the ankle.

Unisex size range

Built to fit men US shoe sizes 6 through 13 and women US shoe sizes 7 and up. The ribbing grips the calf gently, keeping the party pattern straight whether worn around the house or under casual pants.

Ready for gifting

Each pair arrives packaged in its own printed gift box. You can hand it straight to a brother, sister, daughter, son, or coworker turning thirty without hunting down extra wrapping paper.

Specification as the manufacturer wrote it, wording and all:

  • 30th BIRTHDAY GIFTS MALE FEMALE: These socks feature birthday gifts, hats, and balloons on top, with a hilarious secret message on the bottom: "I'M NOT 30, I'M 29+1". A unisex gift for anyone celebrating their 30th BIRTHDAY
  • 30th BIRTHDAY GIFTS: These gifts are suitable for 30 year old men and women. They make presents for your daughter, son, granddaughter, grandson, sister, brother, aunt, uncle, mom or dad
  • QUALITY MATERIAL: Our crazy socks are made of 80% cotton, 15% polyamide and 5% elastane to ensure they are soft, comfortable, stretchy, and breathable. They won't fade and are machine washable
  • READY‑TO‑GIFT: Arrives in an elegant gift box for effortless gifting. Works well for birthday parties, birthday giveaways, birthday stocking stuffers and surprise birthday presents for your loved ones
  • SIZE: Our unisex design fits most men's US size 6-13 feet and most women's US size 7 and up

Sizing

Match the shoe size, not the sock size

Novelty socks from this label are sold by the shoe size they fit, and the range on the listing is wide. If the wearer sits at the top of the range, the cuff will be shorter on them than in the photo.

How the sizes work

1Find the shoe rangeEvery product page repeats the range from the label, usually men US 6 to 13 or women US 5 to 10. If the recipient is outside it, the sock will still go on and it will sit lower than the photo.
2Check the heightCrew hits mid calf. Knee-high and thigh-high pairs list a leg length in inches, and that number matters more than the shoe size for anyone tall.
3Look at the stretch contentSpandex and elastane sit between three and fifteen percent in this range. The higher end takes a wider calf. The cotton-heavy pairs stretch less and hold shape longer.