OMS Sizing Guide
OMS technical diving equipment is designed around adjustability rather than fixed body sizes.
Harnesses
The OMS Comfort Harness is one size and adjusts to fit divers from approximately XS through XXL. The adjustment guide is printed inside the shoulder pads, and the webbing can be trimmed to fit after adjustment.
IQ Lite Systems
IQ Lite backpack/harness systems are offered in multiple sizes. Sizing is based on torso length, and the shoulder and waist webbing adjust over a wide range. If you are between sizes, we recommend the larger size when diving thick exposure protection (drysuit or 7mm wetsuit).
Wings
OMS Performance Mono and Double wings are sized by lift capacity (buoyancy), not body size. Choose lift based on your tank configuration and ballast requirements — not your clothing size.
SlipStream Fins
SlipStream fins are sized to be worn over drysuit boots or thick neoprene boots. If you are between sizes or diving a drysuit with rock boots, we recommend sizing up.
Not sure which size fits you best? Contact us — we fit OMS gear in store every week and are happy to help.
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Description
Description
The OMS Performance Mono Wing is a single-tank, donut-style wing designed for streamlined buoyancy control in backplate and harness systems. Built for recreational and technical divers using a single cylinder, this wing promotes balanced trim and consistent air distribution around the diver’s back, helping maintain stable positioning underwater. The circular bladder design allows air to move freely from side to side, reducing trapped gas and improving buoyancy management throughout the dive.
Constructed with a rugged outer shell and a replaceable inner bladder, the Performance Mono Wing is engineered for durability in demanding dive environments. It integrates cleanly with standard backplates and harness assemblies, offering a low-profile configuration that minimizes drag while maintaining reliable lift capacity for single-tank setups. Reinforced attachment points, streamlined inflator routing, and practical dump valve placement support efficient operation and long-term reliability.
Features
Features
- Donut-style mono wing optimized for single-tank buoyancy control and trim
- Durable 1000 denier Cordura® outer shell for abrasion resistance
- Heavy-duty polyurethane inner bladder, removable and replaceable
- Designed for use with standard backplate and harness systems
- Balanced air distribution to prevent gas trapping and improve stability
- Low-profile shape to reduce drag and maintain a streamlined dive profile
- Integrated cam band slots for secure cylinder attachment without an adapter
- Standard power inflator with reinforced hose routing
- Lower and upper over-pressure relief / dump valves for controlled buoyancy adjustments
- Reinforced grommets for secure mounting to stainless steel or aluminum backplates
- Suitable for recreational, advanced, and technical single-tank diving configurations
Payment & Security
Payment methods
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WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.











