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$39.90
per shirt
 

Optimising Efficiency T-Shirt

Qty:
Basic Dark T-Shirt
-$5.20
+$12.20
Charcoal Heather
Vivid Printing: White Underbase

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About T-Shirts

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Style: Basic Dark T-Shirt

Comfortable, casual and loose fitting, our heavyweight dark colour t-shirt will quickly become one of your favorites. Made from 100% cotton, it's unisex and wears well on anyone and everyone. We’ve double-needle stitched the bottom and sleeve hems for extra durability. Select a design from our marketplace or customise it to make it uniquely yours!

Size & Fit

  • Model is 188 cm and is wearing a medium
  • Standard fit
  • Garment is unisex sizing
  • Fits true to size

Fabric & Care

  • 100% cotton (Heathers are a cotton/poly blend)
  • Double-needle hemmed sleeves and bottom
  • Imported
  • Machine wash cold

About This Design

Optimising Efficiency T-Shirt

Optimising Efficiency T-Shirt

Stay comfortable and stylish while you optimise your productivity with our "Optimising Efficiency" t-shirt. Made from 100% high-quality cotton, this t-shirt is soft, breatheable, and perfect for everyday wear. Featuring the slogan "I'm not procrastinating, I'm just optimising my efficiency" in bold, white letters, this t-shirt is a great conversation starter and a perfect gift for anyone who values productivity and efficiency. Whether you're working on a project, studying for an exam, or simply trying to get through your to-do list, this t-shirt will help you stay motivated and focused on your goals. With its classic design and comfortable fit, it's perfect for wearing to the office, gym, or just lounging around at home. So, if you're ready to take your productivity to the next level, order your "Optimising Efficiency" t-shirt today!

Customer Reviews

4.7 out of 5 stars rating32.1K Total Reviews
25173 total 5-star reviews4956 total 4-star reviews1077 total 3-star reviews485 total 2-star reviews439 total 1-star reviews
32,130 Reviews
Reviews for similar products
5 out of 5 stars rating
By Robert C.1 March 2022Verified Purchase
Basic Dark T-Shirt, Black, Adult L
Creator Review
I purchased this to test to see if zazzle was producing good quality. Needless to say, they are. The sizing runs a bit on the small size though. Print quality is perfect. What you see on the screen is what you get.
5 out of 5 stars rating
By Xavier D.3 February 2021Verified Purchase
Basic Dark T-Shirt, Black, Adult M
Creator Review
I like the colours and design, I liked it that much I bought one for myself. Yes the colours and deisgn turned out great. Much better than I expected
5 out of 5 stars rating
By Rachel R.4 September 2025Verified Purchase
Basic Dark T-Shirt, Black, Adult S
Ordered the Irish terrier t shirt. I love it! There was a slight issue with sizing ( my fault) but their customer service was amazing. New t shirt within 5 days. I recommend getting 1 to 2 sizes bigger. I am wearing Men's size large.

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T-Shirts
productivityefficiencymotivationcomfortstylesloganconversation starternerd designgeek t shirtscience
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productivityefficiencymotivationcomfortstylesloganconversation starternerd designgeek t shirtscience

Other Info

Product ID: 256718108990078568
Added on 27/4/23, 2:38 pm
Rating: G