Size Guide

Finding the right fit is important whether you're training, competing, or wearing your gear every day.

Use the size charts below as a general guide. If you're between sizes, consider how you prefer your gear to fit:

• For a tighter, competition-style fit: size down when appropriate.
• For a more relaxed fit: size up.
• For rashguards: chest measurement is the most accurate sizing method.
• For gis: weight and height recommendations should be used together for the best fit.

Jiu-Jitsu Gi Sizing

Our Classic Gi vis designed with a balanced athletic cut suitable for both training and competition.

Recommended Fit

• Use both height and weight to determine your size.
• If you're broad-shouldered or carry more muscle mass, consider sizing up.
• If you're between sizes and prefer a more fitted competition cut, choose the smaller size.

Gi Measurements

Gi Features

• 380 GSM Pearl Weave Jacket
• Reinforced stress points
• Competition-ready fit
• Preshrunk fabric for improved consistency

Rashguard Sizing

All Knowledge rashguards feature a compression fit designed for grappling, training, and active performance.

Recommended Fit

• Measure around the fullest part of your chest.
• Chest measurement is more accurate than weight alone.
• Weight ranges are provided as a general reference.
• If you prefer less compression or are between sizes, size up.

Rashguard Measurements

Rashguard Features

• Compression athletic fit
• Four-way stretch fabric
• Flatlock stitching
• Designed for No-Gi, Gi training, and general fitness

T-Shirt Sizing

Our t-shirts are designed for everyday wear with a comfortable, true-to-size fit.

* Chest measurement is the most accurate way to choose your size. Weight ranges are provided as a general reference and may vary based on height and body composition.

Still Not Sure?

If you're unsure which size to choose, contact us at info@allknowledgejourney.com with your height, weight, and preferred fit, and we'll be happy to help.

Enjoy the journey.

 SEEK KNOWLEDGE. GROW STRONG.