I started North South because of a need. Trying to find underwear that didn’t stink after a few rolls was a challenge for me. I might have a special sweat but I needed to make sure I was not gassing my rolling partners. I bought all the high end “sports” underwear (UA, NIKE, SAXX, etc..) and all of them didn’t meet my needs and expectations. They got loose fast and smelled as soon as I started sweating. I’m not mentioning any underwear that is cotton based since they all feel like a wet rag instantly and break down at a high pace.
The design process started by solving those problems right away. We introduced a bamboo fabric barrier on top of a polyester/spandex body. A high weight polyester/spandex fabric feels cool and snug on the skin and glides on a cotton gi. The bamboo inner layer with its antimicrobial properties, strength and silk like feel was the perfect solution to add an extra barrier between your derrière and your rolling partners face.
As I was testing the first prototypes, I decided to solve other issues that regular underwear have. The waistbands are low grade and lose their elasticity, the leg openings ride up into your crotch and stitching isn’t comfortable and low quality.
We chose the best quality waistband we could find and even covered the usual back stitch to make sure it was as comfortable as possible. We also decided on 2” wide waistband since it gives a better hold on the waist and prevents wedgies and grips.
We introduced an elastic and silicone tape on the leg openings to prevent riding up. It really keeps the underwear in place and stops the bunching in the crotch.
Stitching was also carefully designed to minimize friction without sacrificing comfort and quality while being as strong as possible. A 4 needle 6 thread stitch throughout the underwear gave those properties.
After a few revisions on sizing, cuts and color, North South Jiu-Jitsu underwear became a beautiful piece of grappling equipment that is indispensable. Once you wear a proper underwear for grappling you will never go back.