Core Series
Pre-Order
Core Gi
CORE
GI
400GSM DURA-PEARL™ COTTON WEAVE / 10OZ RIPTECH™ RIPSTOP
THE GI YOU'LL REACH FOR MOST. Built for the practitioners who keep showing up. A clean daily training uniform with a 400GSM DURA-PEARL™ jacket, 10oz RIPTECH™ pants, and the durability to stay in rotation.
Daily Training Build
Structured jacket. Lightweight ripstop pants.
Free Pro Belt
Choose rank and size after Add To Cart.
$150USD
Free Size Exchanges · 30-Day Returns
Included With Core Gi
Free Pro Belt
$45 Value
Complete the uniform.Your Core Gi includes a Jiujiteiro Pro Belt — choose belt rank and size after Add To Cart.
Colorway
Specifications
Jacket
400GSM DURA-PEARL™ COTTON WEAVE
Pants
10OZ RIPTECH™ RIPSTOP
Fit
Structured Athletic Cut
Feel
Daily Training Structure
Details
Minimal Branding · Reinforced Stitching · Clean Core Fit
Use
Daily Training · Competition Training
Care
Cold Wash. Hang Dry. Fit Settles After Washing.
Core Build
Core Build / 01
THE ONE YOU KEEP REACHING FOR.
Most practitioners own more than one gi. Eventually, one becomes the default — the one that is always packed, always trusted, and always ready for another class. Core was built to be that gi: clean in appearance, technical in construction, and dependable through years of training.
400GSM DURA-PEARL™
10OZ RIPTECH™ RIPSTOP
FREE PRO BELT INCLUDED
ATHLETIC TRAINING CUT
Material + Construction
01 / Jacket
400GSM DURA-PEARL™ COTTON WEAVE
Built from 400GSM DURA-PEARL™ cotton weave, the Core jacket balances structure, comfort, and long-term durability. Substantial through the collar, lapel, and sleeves without the heavy, restrictive feel that makes a gi sit in the closet.
Daily training weight
Structured collar
Reinforced lapel
Clean jacket body
02 / Pants
10OZ RIPTECH™ RIPSTOP
10oz RIPTECH™ ripstop cotton keeps the pants light, durable, and easy to train in every day. Built for guard work, passing, scrambles, washing, and the repeated friction of real mat time.
Ripstop grid
Reinforced knees
Secure drawcord
Lightweight pants
03 / Finish
REINFORCEMENT + CORE DETAILS
Minimal Jiujiteiro branding, reinforced stitch lines, and clean finishing are placed where the gi sees the most wear. Quiet where it should be. Reinforced where it matters.
Cuffs
Skirt
Hem
Pant panels
Core Gi — Gray
The Gi You’ll
Reach For Most.
Reach For Most.
The Core Gi was built for the sessions that actually make you better — early classes, hard rounds, open mats, travel drops, and the ordinary days when you still show up. 400GSM DURA-PEARL™ jacket. 10oz RIPTECH™ pants. Free Jiujiteiro Pro Belt included.
Practitioner Notes
Purple Belt
Marco V.
4x/week · San Diego, CA
I get compliments on it all the time. New out of bag the gi pants look big but after a couple washes its perfect. My coaches all loved it and two of them actually bought it after they saw me wearing it.
Practitioner fit note.
Brown Belt
Daniel R.
Open mat rounds · Weekly training
I prefer gis that aren't loud. The fit is perfect and its build and quality is better than all of my training partner's gis.
Practitioner fit note.
Black Belt
Rafael M.
15+ years on the mat
I've been training for almost 30 years now. The core gi is my favorite, hands down. I bought 5 over the last 2 years all have held up and look good. The royal blue is my favorite, it pops!
Practitioner fit note.
Fit + Size
Size Guide + What To Know
Fit + Care
The Core Gi has an athletic training fit: clean through the body with room to move, grip fight, and wash into its final shape. Cold wash and hang dry.
| Size | Height | Weight | Gi Weight |
|---|---|---|---|
| A00 | 5'0"–5'4" | 115–130 lbs | 3.1 lb |
| A0 | 5'3"–5'6" | 125–145 lbs | 3.2 lb |
| A1 | 5'5"–5'8" | 145–165 lbs | 3.4 lb |
| A1L | 5'8"–5'11" | 155–175 lbs | 3.5 lb |
| A2 | 5'7"–5'11" | 165–190 lbs | 3.8 lb |
| A2H | 5'7"–5'11" | 185–210 lbs | 4.0 lb |
| A3 | 5'10"–6'2" | 190–220 lbs | 4.0 lb |
| A3S | 5'10"–6'2" | 175–200 lbs | 3.9 lb |
| A4 | 6'1"–6'4" | 220–260 lbs | 4.3 lb |
Weights are approximate. If you are between sizes and prefer more room after washing, size up.
Fit
Athletic cut. Clean through the body with enough room to grip fight, drill, pass, and move.
Jacket
400GSM DURA-PEARL™ COTTON WEAVE. Structured through the collar, lapel, and sleeve body.
Pants
10OZ RIPTECH™ RIPSTOP. Lightweight feel with reinforced wear areas.
Care
Cold wash. Hang dry. Avoid high heat to preserve fit, color, and detailing.
Use
Daily training, open mat, and competition training. Check tournament rules before competing.
Complete The Uniform
Every Core Gi purchased from this page includes a Jiujiteiro Pro Belt. Add the base layers serious practitioners wear under the uniform.
Included Offer — Rank
Jiujiteiro
Pro Belt
Pro Belt
Included with Core Gi purchase from this page. Cotton-woven, regulation width, and built to complete the uniform from day one.
Included
Slot 02 — Under The Gi
Pro Ranked
Rashguard
Rashguard
Technical compression layer built for sweat, friction, and hard rounds under the gi.
$84
Shop Rashguards →
Slot 03 — Base Layer
Pro Compression
Shorts
Shorts
Support and coverage under the pants. A clean base layer for guard work, passing, and daily mat time.
$58
Shop Compression Shorts →The Commitment
Train With Confidence. Free size exchanges and 30-day returns. If the fit is not right, send it back clean and unworn. We will help you get into the correct size.
Ships
Within 2 Business Days
US Delivery
3–6 Business Days
Free Shipping
US Orders Over $150
CORE GI GRAY
$150USD
Free Pro Belt Included With Core Gi
Select Size