Discover the ultimate in warmth and craftsmanship with the Double Heavyweight French Terry Crewneck from Wonder Looper. Weighing an extraordinary 876gsm (25.8oz per square yard), this sweatshirt goes far beyond conventional heavyweight garments. Each piece is meticulously produced in Wakayama, Japan, a region renowned for its circular knitting heritage and uncompromising quality.

This crewneck pushes the limits of knitwear, featuring a fabric density nearly twice that of standard heavyweight sweats. The result is exceptional warmth, structure, and a reassuring sense of substance—ideal for cold days and crisp evenings.

The fabric itself is a specially developed French terry, knitted on low-gauge (10G) circular machines to create a subtly irregular surface texture rich in depth and character. On the inside, large, plush loops provide a soft, cushioned feel against the skin, enhancing comfort with every wear.

Finished with a modern athletic fit, this piece balances classic sweatshirt design with contemporary wearability. Details include a ribbed binder collar with a vintage-inspired V-gusset, raglan sleeves for ease of movement, and ribbed side panels, cuffs, and hem that provide structure without restriction. The result is a sweatshirt that feels as refined as it is formidable.

Fit Notes: Despite being a Japanese brand, we find the sizing of Wonder Looper garments to be more Western than Japanese. If you usually wear a size M in American sweatshirts, you'll find a suitable fit with this piece in size M. However, as always, we recommend consulting our size chart for the perfect fit.