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Umi no Mado Men’s Boxy Heavyweight T-Shirt (Back Print) | Cotton Heritage

Umi no Mado Men’s Boxy Heavyweight T-Shirt (Back Print) | Cotton Heritage

Regular price £31.99 GBP
Regular price Sale price £31.99 GBP
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  • Made to Order • No Excess Stock• Returned items are donated, never resold.
  • Production: Please allow up to 3 weeks for production and delivery. Many orders arrive sooner.
  • Shipping: UK 2–5 days, USA 3–4 days, EU 5–10 days, Australia 3–6 days, International 5–20 days.

Produced on demand to help reduce overproduction and unnecessary waste while maintaining premium quality. Tracking details will be emailed once your order has been dispatched.

Boxy Oversized Fit – Featuring a shorter, wider cut with dropped shoulders, this design delivers a relaxed yet structured streetwear silhouette that stands out.
Heavyweight Fabric – Made from 100% combed ring-spun cotton at 237gsm, ensuring durability, strong structure, and a premium tactile experience.
Streetwear Essential – Built with reinforced seams, a ribbed collar, and side-seamed construction, this t-shirt is ideal for everyday layering and distinctive styling.

Drawing inspiration from traditional Japanese woodblock art, the Umi no Mado (海の窓 – “Window to the Sea”) Boxy Heavyweight T-Shirt merges timeless wave motifs with contemporary streetwear. The large back print showcases a captivating ocean scene framed in window-like panels, reminiscent of classic Japanese prints while introducing a modern graphic flair. Below the artwork, bold Japanese typography enhances the design’s balance and visual impact, creating a piece that is both culturally rich and fashion-forward.

The expansive back artwork delivers a powerful visual statement, contrasted by a clean, minimal front. The composition captures the dynamic energy and fluidity of the sea, as if gazing through a quiet window toward an endless horizon.

Constructed from heavyweight combed ring-spun cotton, this tee offers a substantial feel that maintains its shape while providing comfort suitable for daily wear. The boxy oversized fit with dropped shoulders creates a relaxed streetwear profile that layers effortlessly and adds refined structure to casual ensembles.

This premium heavyweight t-shirt expertly combines the influence of classic Japanese art with modern streetwear design principles.

Product Details

• Large back print featuring the Umi no Mado wave artwork
• 100% combed ring-spun cotton
• Fabric weight: 7 oz./yd² (237.34 g/m²)
• Oversized relaxed boxy fit
• Drop shoulder sleeves providing a modern streetwear silhouette
• Ribbed collar with reinforced neckline for durability
• Blank product sourced from Bangladesh

Size guide

LENGTH (inches) CHEST (inches)
S 28 ¼ 34-37
M 29 ¼ 38-41
L 30 ¼ 42-45
XL 31 ¼ 46-49
2XL 32 ½ 50-53
3XL 33 ½ 54-57
4XL 34 ¼ 58-61
LENGTH (cm) CHEST (cm)
S 71.8 86.4-94
M 74.3 96.5-104.1
L 76.8 106.7-114.3
XL 79.4 116.8-124.5
2XL 82.6 127-134.6
3XL 85 137.2-144.8
4XL 87 147.3-155
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EU Warranty: 2 years
Other compliance information: Meets the flammability, lead, cadmium, bisphenols and phthalates level requirements.In compliance with the General Product Safety Regulation (GPSR), Jumble Print Designs Ltd and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards.
For any product safety related inquiries or concerns, please contact our EU representative atgpsr@sindenventures.com. You can also write to us at
Registered Office: 23 Riverside Studios, Newcastle Business Park, Newcastle upon Tyne, NE4 7YL or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.
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