Hayabusa S4 PU Leather Boxing Gloves for Men - 10oz to 16oz Training

In this review the Hayabusa S4 PU Leather Boxing Gloves are judged as a solid starter option for anyone beginning striking sports; they are especially good for those who want reliable wrist support and a comfortable, tailored fit without spending a lot. The biggest reason to buy is protection: the S4 combines a splinted wrist support with padded knuckle cushioning so beginners can train and spar with more confidence. These gloves are built from PU leather with a mesh palm and nylon lining to handle frequent gym use while remaining comfortable from the first wear.

Key Features

• PU leather construction: durable synthetic outer material provides a consistent surface for repeated bag and pad work while resisting early wear.
• Pre-curved ergonomic pocket: the shaping and grip bar promote a natural fist closure and correct hand alignment during strikes.
• Splinted wrist support: a single strap and internal splint work together to reduce risky wrist bends and keep the wrist stable.
• Mesh palm and nylon lining: breathability and a smooth interior help the gloves stay comfortable during longer sessions and reduce internal moisture.
• Padded knuckle protection: multi-density cushioning around the knuckles helps absorb impact for beginner sparring and mitt work.
• Multiple sizes available: offered in 10 oz, 12 oz, 14 oz, and 16 oz to match body weight, training type, and partner requirements.

Who It's For

The S4 is aimed at beginners and recreational trainees across disciplines such as boxing, kickboxing, Muay Thai, taekwondo and general martial arts who need protective, supportive gloves for pad work, bag sessions, and light sparring. Its tailored fit and wrist splint make it a good choice for users prioritizing safety and proper fist alignment while learning technique.

Those with larger or unusually wide hands may find certain sizes feel snug until broken in, and advanced fighters who need professional-grade competition gloves or specialized layering for heavy daily sparring might prefer higher-end or leather options. Still, for entry-level use the S4 offers a strong balance of comfort and protection.

Pros & Cons

Pros

• Supportive splinted wrist and single strap deliver secure wrist alignment for safer training.
• Comfortable pre-curved pocket and grip bar encourage correct fist closure from the first session.
• Good value: PU leather and nylon lining give durability and comfort at an accessible price point.
• Mesh palm improves breathability during extended workouts.

Cons

• Fit can be tight for some users, particularly those with wider hands, and requires a break-in period.
• As a PU leather glove, it will not have the same long-term lifespan as higher-end genuine leather options.

Specifications

Brand	Hayabusa
Material	PU leather outer, nylon lining, mesh palm
Available weights	10 oz, 12 oz, 14 oz, 16 oz
Intended use	Training, sparring, kickboxing, MMA, Muay Thai, taekwondo
Closure	Single strap with splinted wrist support
Pack contents	1 pair of S4 boxing gloves

Our Verdict

The Hayabusa S4 is a dependable beginner glove that balances protection, fit and cost, making it a sensible buy for new boxers and martial artists focusing on technique and safety. It is good value for training and light sparring thanks to its wrist support, padded knuckles and comfortable pre-curved fit, though those wanting maximum longevity or a roomier fit may look to higher-end leather models.

Frequently Asked Questions

Are these gloves suitable for sparring?
Yes. The S4 includes padded knuckle protection and a splinted wrist to make it suitable for light to moderate sparring sessions for beginners.

Which size should I choose?
Choose weight by training use and body size: 10 oz and 12 oz for smaller hands or fitness work, 14 oz and 16 oz for heavier training and sparring; note some users report a snug initial fit.

What are they made of?
The gloves use PU leather for the outer shell, with a nylon lining and mesh palm for breathability and comfort.