Swimming goggles ARENA Cobra Tri Mirror, one size, black frame, polycarbonate lenses, TPR gasket

ARENA Cobra Tri Mirror swimming goggles in black combine a polycarbonate frame with mirrored polycarbonate lenses and a Thermoplastic Rubber (TPR) gasket to meet the needs of open-water and triathlon swimmers. Designed for training and competition, they feature mirrored lenses to reduce glare and a secure sealing system intended to keep water out during long-distance swims. The goggles come in one size and include an adjustable split strap and interchangeable nose bridges to help achieve a personalized fit.

Advantages

The mirrored polycarbonate lenses provide glare reduction and durable impact resistance while preserving clear vision in bright conditions. The TPR gasket and 3D Japanese TPE seals create a watertight fit that balances comfort and stability during intensive swimming and sighting in open water. Swipe antifog technology helps maintain clear lenses over longer sessions by limiting water flow across the inner surface. The adjustable split strap and interchangeable nose bridges allow fine tuning of fit for different face shapes.

Suitable for

• Open-water swimming and triathlon events
• Long-distance training sessions
• Outdoor pools with bright sunlight or reflective water
• Swimmers seeking a secure, watertight goggle for sighting

Key specifications

• Frame material: polycarbonate
• Lens material: mirrored polycarbonate
• Gasket material: Thermoplastic Rubber (TPR) with 3D Japanese TPE seals
• Anti-fog system: Swipe antifog technology
• Fit: one size with adjustable split strap and interchangeable nose bridges
• Color: black frame

How to use

Adjust the interchangeable nose bridge to set the eye spacing before placing the goggles on your face. Position the TPR gasket to sit comfortably around the eye sockets, then pull the adjustable split strap over the back of the head and tighten evenly until the goggles feel secure without excessive pressure. Use the swipe antifog system as recommended by the manufacturer to maintain clear vision; avoid rubbing the inner lens surface. After use, rinse the goggles in fresh water and let them air dry away from direct sunlight to preserve the mirrored coating and gasket materials.

Usage recommendations

For best performance in open water, adjust the strap and nose bridge on land and perform a short leakage check in shallow water before starting a long swim. Store the goggles in a protective case to avoid scratches to the mirrored lenses and follow care instructions to prolong the life of the anti-fog treatment and seals.