Aqualung Express Open Heal Fins

Overview

The Aqua Lung Express Open Heel Fins are performance-oriented scuba diving fins engineered to deliver comfort, power, and efficiency with every kick. Featuring Aqua Lung's innovative Armadillo propulsion system, these fins store and release energy throughout the kick cycle to help maximize thrust while reducing fatigue. Combined with spring straps and a comfortable foot pocket design, the Express SS is built for divers seeking dependable performance in a wide range of diving conditions.

Key Features

• Armadillo Propulsion System: Ultra-elastic rubber membrane stores and releases energy throughout the kick cycle for enhanced propulsion
• Mid-Foot Flex Joint: Connects the blade farther back on the foot pocket to help reduce strain on ankles and toes
• Efficient Energy Transfer: Variable-thickness foot pocket securely connects the foot to the blade for improved kicking efficiency
• Water Channeling Side Ribs: Rubber side rails help direct water along the blade while reducing spill-over
• Spring Heel Straps: Stainless spring straps with soft TPR heel pads provide easy donning and a secure fit
• Enhanced Grip: Oversized anti-slip rubber pads improve footing on wet surfaces

Specifications

• Fin Style: Open heel
• Strap Type: Spring heel strap
• Propulsion System: Armadillo elastic membrane technology
• Foot Pocket: Ergonomic multi-density design
• Blade Design: Mid-Foot Flex Joint with water-channeling side ribs

Fit & Sizing

The open-heel design is intended for use with dive boots. The spring strap system automatically adjusts for a secure fit while making the fins easy to put on and remove, even when wearing gloves.

How the Armadillo System Works

The Express fin uses the same propulsion principles developed for Aqua Lung's Slingshot and Hotshot fin designs. The patented Armadillo membrane stretches during the downstroke to store elastic energy, then releases that energy during the kick cycle to help improve propulsion efficiency. It also bridges the gap between the foot pocket and blade, preventing water loss through the center of the fin.

Use Cases

• Recreational scuba diving
• Boat and shore diving
• Warm, temperate, and cold water diving with boots
• Divers seeking efficient propulsion with reduced effort

Expert Insight

The Express SS stands out because it combines comfort-focused ergonomics with an energy-return propulsion system. The Armadillo membrane helps create a smooth and efficient kick cycle, while the spring straps and comfortable foot pocket make these fins easy to use for divers of all experience levels.

What’s Included

FAQs

Care & Return Policy

Rinse thoroughly with fresh water after each dive and allow the fins to dry completely before storage. Regularly inspect straps, springs, and foot pockets for wear or damage.

For full details on returns and eligibility, please review our Return Policy .