Hayabusa S4 PU Leather Boxing Gloves for Training - Beginner Ready

In this review of the Hayabusa S4 PU Leather Boxing Gloves the bottom line is clear: these are a practical, budget-minded option for people learning striking sports who want reliable protection and a comfortable fit. The S4 checks the basics without fuss - it pairs PU leather construction and a mesh palm with a pre-curved pocket and splinted wrist support to give beginners secure fist closure and steady wrist alignment during heavy training. For anyone starting boxing, kickboxing, Muay Thai or general pad work, the S4 delivers confident protection for regular practice.

Key Features

• PU leather construction: Durable synthetic leather offers a balance of longevity and easier care so the gloves hold up through repeated training sessions.
• Pre-curved ergonomic pocket: The molded pocket and grip bar promote proper fist closure and hand alignment to reduce hand fatigue and improve technique.
• Mesh palm and nylon lining: Breathable palm panels and smooth lining help manage moisture and make the gloves more comfortable for longer workouts.
• Splinted wrist support with single strap: The wide strap and internal splint stabilize the wrist to prevent risky bends and add confidence when striking heavy pads or bags.
• Cushioning foam over knuckles: Thick padding protects the knuckles and absorbs shock so beginners can focus on form during sparring and drills.

Who It's For

The S4 is best for beginners and fitness trainees across disciplines - boxing, kickboxing, Taekwondo, Muay Thai and general striking classes - who need an affordable glove that still prioritizes protection and wrist support. It suits adults and teens training on bags, pads, and light sparring, and comes in 10 oz, 12 oz, 14 oz and 16 oz sizes to match different training needs.

Those who should look elsewhere include experienced competitive fighters or people wanting premium leather, advanced multi-layer foam systems, or highly tailored fit options; the S4 is positioned as a starter to intermediate glove rather than a top-tier pro model.

Pros & Cons

Pros

• Comfortable, supportive feel right out of the box thanks to the pre-curved pocket and grip bar.
• Secure wrist stability from the single strap working with the splinted wrist support.
• Breathable mesh palm and nylon lining help reduce sweat build-up during long sessions.
• Good value for beginners who need dependable padding and protection for striking practice.

Cons

• Fit is mixed for some users; a few people report the gloves feel tight and may require a break-in period.
• PU leather and starter-level foam mean they are not the most durable option compared with premium pro gloves.

Specifications

Brand	Hayabusa
Material	PU leather with nylon lining
Palm	Mesh palm for breathability
Wrist	Single strap with splinted wrist support
Sizing	10 oz, 12 oz, 14 oz, 16 oz
Intended use	Training, sparring, kickboxing, MMA, Muay Thai and martial arts

Our Verdict

The Hayabusa S4 is a sensible pick for beginners and casual trainees who want solid wrist support, comfortable hand alignment, and breathable construction at a reasonable price. It is good value for routine training and pad work, though those seeking premium materials or a roomier fit may prefer higher-end models.

Frequently Asked Questions

Are these gloves suitable for sparring?
Yes, the S4 offers padding and splinted wrist support appropriate for light to moderate sparring, but fit and glove weight should be matched to the partner and session intensity.

What sizes are available?
The gloves come in 10 oz, 12 oz, 14 oz and 16 oz to cover common training and sparring preferences.

How breathable are these gloves?
The mesh palm and nylon lining improve airflow and help manage moisture compared with all-solid synthetic palms.