Justin + Simon

Justin+Simon: A Cleaner, Slimmer Take on Underwear

A Closer Fit by Design

Compared with our main collection, Justin+Simon has a higher leg line, narrower sides, and a trimmer shape through the seat. It feels sleek without becoming restrictive and works especially well under tailored or slim-fitting clothes. The look stays deliberately simple: restrained colors, minimal branding, and details that let the cut speak for itself.

Smooth Fabric, Color That Lasts

The core fabric is PARAISO 1, our smooth 84% polyester and 16% elastane blend. It stretches comfortably, returns to shape, and keeps a clean surface under clothing. We also use pre-dyed waistband yarn, so the color runs through the elastic instead of sitting only on top. That helps the band keep its appearance as it is folded, stretched, and washed.

Made for Slimmer Clothes

Flat seams and flexible hems reduce bulk, helping Justin+Simon underwear sit smoothly beneath slim trousers. The stretch fabric keeps the garment close as you move, without relying on tight edges. Sizing matches the rest of the MaleBasics catalog, so a medium is designed for a 32–34-inch waist across the line. If your wardrobe leans tailored, this is a great place to start.

Shop similar collections: men’s bikini underwear | men's thongs | men’s underwear | men’s briefs