Skip to main content
Flat lay front view of Jackman JM5538 rib GCU T-shirt in white with black collar, sleeves, and 'Good CALL U.M.P.' text on chest.
Flat lay front view of Jackman JM5538 rib GCU T-shirt in white with black collar, sleeves, and 'Good CALL U.M.P.' text on chest.
Close-up front of Jackman white rib ringer T-shirt with black collar, chest 'Good CALL U.M.P.' text, visible tag detail
Close-up front of Jackman white rib ringer T-shirt with black collar, chest 'Good CALL U.M.P.' text, visible tag detail
Close-up front of Jackman JM5538 rib collar white-black t-shirt, chest embroidery, neck tag detail
Close-up front of Jackman JM5538 rib collar white-black t-shirt, chest embroidery, neck tag detail
Close-up of white ribbed t-shirt sleeve with black cuff, flat lay, right side detail
Close-up of white ribbed t-shirt sleeve with black cuff, flat lay, right side detail
Flat lay of white and black ribbed ringer t-shirt, back side, short sleeves, Dant apparel
Flat lay of white and black ribbed ringer t-shirt, back side, short sleeves, Dant apparel
Front full-body view of male model 5'9
Front full-body view of male model 5'9
Male model 5'9 165lbs athletic, side view, wearing white ribbed ringer t-shirt with black collar and cuffs, green pants, and white sneakers, Dant contemporary casual apparel
Male model 5'9 165lbs athletic, side view, wearing white ribbed ringer t-shirt with black collar and cuffs, green pants, and white sneakers, Dant contemporary casual apparel
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Front view of male model 5'9
Front view of male model 5'9
Close-up of male model, 5'9
Close-up of male model, 5'9
Close-up of male model 5'9
Close-up of male model 5'9
Close-up of male model, 5'9
Close-up of male model, 5'9
Close-up of a male model 5'9
Close-up of a male model 5'9
Flat lay front view of Jackman JM5538 rib GCU T-shirt in white with black collar, sleeves, and 'Good CALL U.M.P.' text on chest.
Close-up front of Jackman white rib ringer T-shirt with black collar, chest 'Good CALL U.M.P.' text, visible tag detail
Close-up front of Jackman JM5538 rib collar white-black t-shirt, chest embroidery, neck tag detail
Close-up of white ribbed t-shirt sleeve with black cuff, flat lay, right side detail
Flat lay of white and black ribbed ringer t-shirt, back side, short sleeves, Dant apparel
Front full-body view of male model 5'9
Male model 5'9 165lbs athletic, side view, wearing white ribbed ringer t-shirt with black collar and cuffs, green pants, and white sneakers, Dant contemporary casual apparel
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Male model 5'9
Front view of male model 5'9
Close-up of male model, 5'9
Close-up of male model 5'9
Close-up of male model, 5'9
Close-up of a male model 5'9

JM5538 - Rib GCU T-Shirt - 97 White, Black

$ 88.00

The Jackman Rib GCU T-Shirt is a contemporary reinterpretation of the classic ringer tee, blending vintage aesthetics with modern craftsmanship. Crafted from 100% USA cotton sourced from the Mississippi River Basin, the fabric undergoes air spinning - a technique that imparts a distinctive dry texture and a subtly crisp handfeel. This process results in a yarn with a strong outer torque and a softer core, giving the shirt its unique character. The design features a contrasting ribbed neckline and sleeve cuffs, reminiscent of mid-century athletic wear, and is adorned with an embroidered slogan on the left chest that reads "Good Call U.M.P." This playful detail adds a touch of personality to the minimalist design. With its relaxed fit and breathable fabric, the Rib GCU T-Shirt is an ideal choice for warm-weather layering or as a standalone piece. Proudly made in Japan, it exemplifies Jackman's commitment to quality and timeless style.

  • 100% USA cotton, air-spun for a dry, textured finish
  • Contrasting ribbed neckline and sleeve cuffs
  • Embroidered "Good Call U.M.P." slogan on left chest
  • Relaxed fit suitable for layering or standalone wear
  • Made in Japan
Size Body Length Chest Width Shoulder Width Sleeve Length
S 26.0 20.5 16.5 9.4
M 26.8 21.3 17.3 9.8
L 27.6 22.0 18.1 10.2
XL 28.3 22.8 18.9 10.6

A variance of .5" is within tolerance. 

Fit Notes: Shop owner Tommy is wearing a large by rule from Jackman. He likes the roomier fit and it accounts for shrinkage. His size and weight would make him a Medium in this, but he prefers more room in tees and pants these days. We recommend sizing up once in this t-shirt. Tommy is 5'10," 165lbs with a 40" chest.