Research & Development Shirt

$21 ~~$35~~ In stock

This is the Onyx Coffee Lab Science R & D shirt. Join the Pilgrimage as we seek quality, truth, and accountability in coffee.

Shirt Specs

6.5 oz., 100% ring-spun cotton

Cotton thread to readily absorb when garment-dyed

7/8" ribbed neckband with double needle top stitching

Semi-dropped shoulder

Side seams

Tear-away label

Garment-dyed for unique character; slight color variation may occur

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

George ★★★★★ Oct 13, 2026

The 6.5 oz ring-spun cotton is noticeably softer than my other coffee shirts, and it hasn't shrunk or warped after a few washes. Been wearing it on weekend brew days and it's held up great.

Violet C. ★★★★★ Oct 12, 2026

Wore this to a cupping session and it held up great through a full day of roasting and tasting. The 100% ring-spun cotton feels substantial without being stiff, and it hasn't shrunk or faded after several washes.

Charlotte ★★★★★ Sep 14, 2026

The 6.5 oz ring-spun cotton is noticeably heavier than my other tees, and it's stayed soft after three washes. Wore it to a cupping last weekend and the fit through the shoulders is spot on.