Hayabusa Ultra-Lightweight Jiu-Jitsu Gi – BJJ Competition & Training Kimono

Premium BJJ gi engineered for serious grapplers — the Hayabusa Ultra-Lightweight Jiu-Jitsu Gi delivers the construction, fit, and durability that holds up to years of training in the lightest, coolest package in the Hayabusa gi lineup.

Where the Lightweight Gi offers a pearl weave option, the Ultra-Lightweight goes further with the lightest weave in the Hayabusa range — maximum breathability and minimum fabric weight for hot-climate training, summer gyms, and weight-class competitors who need every advantage on the scale. IBJJF-legal in available colours with pre-shrunk sizing.

Key Features

• Ultra-lightweight construction — the lightest gi weave in the Hayabusa range
• Pre-shrunk for consistent sizing through regular washing
• Reinforced seams and stress points for durability despite low weight
• Triple-stitched lapel for competition-level collar grip resistance
• IBJJF-legal construction in Black, Blue, Grey, and White

Available in Black, Blue, Grey, and White in sizes A0–A5.

Frequently Asked Questions

How does the Ultra-Lightweight compare to the Lightweight and Ascend gis?

The Ultra-Lightweight uses the lightest weave in the Hayabusa lineup — lighter than the Lightweight Gi (pearl weave) and the Ascend (lightweight competition weave). It is the most breathable and temperature-efficient option, ideal for practitioners in hot climates, summer training periods, or those who find standard gis uncomfortably warm. Durability under high collar and sleeve grip stress is slightly lower than heavier weaves, so it is best suited for competitive rolling rather than relentless daily grinding.

Is the Ultra-Lightweight Gi IBJJF-legal for competition?

Yes — the Ultra-Lightweight Gi is IBJJF-legal in competition colours. White, Blue, and Black are the standard IBJJF competition colours. Grey may not be permitted in all IBJJF events — check the specific competition rules before purchasing a grey gi for competition use.

Does a lighter gi wear out faster than a heavier one?

A lighter weave fabric is generally less resistant to the mechanical stress of aggressive collar and sleeve gripping than heavier gold weave or double weave fabrics. The Ultra-Lightweight is designed to be durable despite its low weight, but practitioners who do extremely high volume hard rolling with experienced grapplers will find heavier gis (Goorudo 3, Essential Gold Weave) hold up longer under that specific stress. The Ultra-Lightweight excels in warm-weather and competition contexts where low weight matters most.

What size should I order?

Use height and weight as a starting point: A1 suits fighters around 5'4"–5'8" at 130–160lbs, A2 suits 5'7"–5'11" at 155–185lbs, A3 suits 5'10"–6'2" at 180–215lbs. Consult the Hayabusa size chart for exact measurements. Pre-shrunk construction maintains consistent sizing, but cold-wash and hang-dry remains recommended to keep the sizing as consistent as possible.