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#145 Monster Sashiko Workshirt

Workshirts

$139
Save 50-67%
Typically priced at $278-$417 in retail.
Size
83% funded
Estimated ship date
April 2026
Cut and sewn in California
Thick rope-like strands woven into big weight and even bigger texture fabric that pays homage to a historically significant sewing technique. This is the Monster Sashiko Workshirt. 
Exploring the world of rare Japanese fabrics is something we truly love. We've been working with mills in Japan for over a decade now and continue to be refreshingly surprised by the new styles they present us. The inspiration for this style is the traditional Sashiko sewing technique. Used as a functional sewing technique for repairs and decorative effects, Sashiko is respected for its handmade style, prominent stitching and patterning effects. This style uses a Dobby weave to recreate the prominent stitch and geometric lines and then dials up the texture to absolutely beautiful levels. Imagine the plushest cotton rope interlaced together to create a hand woven look, huge texture and flowing feel. That's what we have here. Even better is the rugged 12 ounce weight, giving this style true vintage appeal. Finished in pure natural color, it can span seasons. This will be one of your most unique and special workshirts.
Several construction details define our workshirt. The first is ample triple needlework with a classic chain stitch runoff. Triple needle is a specialized stitch not found on standard button downs and that serves as the heart of any good work shirt. Ours gets triple-needle flat-felled yoke and side seams with chain stitched bottoms. We also allow the side seam chain stitch to “run off” the end giving you three chain stitch ends on each side. We bar tack to ensure the runoff can’t compromise the security of the side seam. The second detail is double chest pockets. We keep ours a bit cleaner, without flaps, but use button closures and double bar tacks in each corner for added strength. The left chest pocket gets the addition of a small pen slot. The third detail is the side hem gussets. It’s a small functional element and looks absolutely great. On our selvedge styles, we incorporate the selvedge on the bottom. Finally, we love the chin strap. Ours is small enough to be tasteful while still reminding you of the workwear roots of the garment. We created new custom Corozo buttons specifically for our work shirts. Overall, this is one of our most intricately constructed garments and one of the most costly to produce.
Our workshirts will be available in our Classic and Slim fits. The main differences in details between our workshirts and our other shirts come down to construction - no back box pleat, and differently shaped side scoops. The Slim fit has a more tailored body as compared to our Classic fit. Chest and waist come in to provide a more fitted option. Details are in our fit guide now.
Please do not launder with oxy/bleach. Do not oversoak or natural corozo buttons will bleed.
Fit
Available in our classic and slim fits
Fabric
#145, 100% Cotton, 12oz
Finish
Raw, Tonal Stitching
Trims
Custom Corozo buttons, Gustin logo label
Made in
made in usa
Fit guide
Est. Ship
April 2026
Customer Feedback on #145 MONSTER SASHIKO WORKSHIRT
"Huge fan of this shirt! Comfortable right out of the bag. I’m gonna wear it as if it were a medium weight sweater which will be perfect for fall. I’m built with a narrow chest but broad shoulders, so I picked the size based on my shoulders and it was the right call. The only thing keeping it from 5 stars is that the are holes are a little narrow for layering. Other than that I couldn’t be happier."
-Christopher Y. | Verified Buyer
"Incredible quality piece that immediately began featuring heavily in the rotation. The texture really stands out, and the weight of this makes it a perfect addition for use as your outer layer on warmer days, and a mid layer in fall & winter. I have a 43.5" chest and the Classic L fits like a glove. I absolutely never leave reviews but once I started wearing this workshirt I felt like I had to share."
-Mike T. | Verified Buyer
"This is a well made shirt that gets a lot of attention. I ordered the XXL slim and the fit is perfect. Hugh"
-Hugh C. | Verified Buyer
"Great workmanship and addition to my wardrobe."
-Sergio T. | Verified Buyer
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What Customers Are Saying
"I really love Gustin. I just don't think I'd choose another brand at any price point. And I love watching for new products/return of old favs. But a very important part of the experience is the great customer service."
-Keith P. | Verified Buyer
"Never thought I would find a denim company that I feel like is a community."
-Richard S. | Verified Buyer
"About a year ago, a coworker introduced me to Gustin (he rocks some of your pants to the office on the regular) and I have been watching the releases ever since. About three months ago, I finally backed a campaign. Since then, I have been so happy with all the pieces I have received."
-Anne F. | Verified Buyer
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