Season launch · Fall · Halloween · Holiday 2026

That’s What I Do I Collect Rocks And I Know Things Hoodie Funny Geology Humor Gift for Rock Hound

1.2K+ bought in past month

$19.99

5.0(476)New!
in For Teachers
Standard Shipping Arrives Nov 8 – 11

Typically delivered in 3–6 business days (US)

  1. Nov 5 Order placed
  2. Nov 6 – 7 Order ships
  3. Nov 8 – 11 Delivered
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  • Total: $0.00
Size guide · How it fits

Unisex T-Shirt · Gildan 5000

Unisex classic fit — true to size. Size up for a looser look.

SizeLengthChest (flat)
S2818
M2920
L3022
XL3124
2XL3226
3XL3328
4XL3430
5XL3532

All measurements in inches. Chest width is laid flat (half chest). View all size charts

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  • 2 items 5% OFF
  • 3 items 10% OFF
  • 4 items 15% OFF
  • 5 items 20% OFF

Arrives by Nov 8 – 11 if you order today. Hooray!

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Alicia
Georgann
Kathleen

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Description

That’s What I Do – I Collect Rocks And I Know Things Hoodie Funny Geology Humor Gift for Rock Hound

This white pullover hoodie displays the slogan “THAT’S WHAT I DO – I COLLECT ROCKS AND I KNOW THINGS” alongside a whimsical green frog wearing a red wizard hat. The design sits atop a stack of rocks crowned with a gold star, appealing to rockhounds and fantasy fans alike. It is a geology humor hoodie that blends scientific hobbyist pride with playful illustration.

Comfortable fleece for everyday wear

This cotton blend fleece lined hoodie offers warmth and durability for daily use. The graphic print is designed to withstand regular washing, keeping the colors vibrant for long-term use by active hobbyists. A durable print ensures the wizard frog and rock details remain clear after multiple cycles.

Product details and sizing

Available in standard unisex sizes, this blank is a classic pullover style with a front pocket and hood. It suits casual wear at rock shows, classrooms, or outdoor collecting trips. The fit allows for layering over shirts during cooler months.

Is this hoodie suitable for cold weather?

Yes, the cotton/polyester fleece blend provides insulation ideal for fall and winter. It works well as a layering piece for outdoor rock hounding or daily wear during cooler months. The fabric traps heat while remaining breathable enough for indoor settings like science labs or offices.

Who is the target audience for this design?

This hoodie targets geologists, gem collectors, science teachers, and fans of humorous geeky apparel. The wizard frog motif adds a playful element that appeals to fantasy enthusiasts within these groups. It serves as a conversation starter at mineral shows or educational events.

How should I wash this printed hoodie?

Machine wash cold inside out with like colors. Tumble dry low or hang dry to preserve the integrity of the graphic print and prevent fading of the wizard frog and rock details. Following these care instructions helps maintain the quality of the durable print over time.

Does the text reference a specific song?

The phrase “That’s what I do” is a popular meme format often associated with various songs, but this design focuses on the literal hobby of rock collecting. It serves as a humorous statement for mineral enthusiasts rather than a music tribute. The slogan meaning is rooted in personal identity and hobby pride.

Available styles (select at checkout)

This listing may offer multiple blanks under one design. Choose your style and size on the product page:

  • Men’s / unisex T-shirt
  • Women’s T-shirt
  • Sweatshirt
  • Hoodie
  • Tank top
  • V-neck
  • Youth tee
  • Toddler tee
  • Tote bag

Not every store enables every option — only styles shown in the dropdown are available.

Material & print

Design is printed with durable DTG (or equivalent) methods suited to each blank. Fabric weight and brand can differ by style and color — the images and option labels describe what you are ordering.

Fit & sizing

Each blank has its own size chart in the gallery or size guide. Adult tees are typically true to size; youth and toddler follow kids charts; totes are one-size. Always check the chart for the style you select.

Care instructions

  • Apparel: Machine wash cold, inside out; tumble dry low; do not iron on the print; no bleach
  • Tote: Spot clean or gentle hand wash; air dry

Shipping & returns

Made to order per selected blank. Production time applies before shipping. Returns follow the store’s published policy for unused items in original condition.

What our customers say

Real reviews from verified Etsy shoppers.

4.8 (73,575)340K+ salesStar Seller
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Etsy
★★★★★

Loved this T-shirt! The quality of the T-shirt is really good, it's not a cheap, thin T-shirt. I got black sparkles for the design and I love it.…

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