Hollis SMS75 Single Wing - Only

A BCD should fit snugly enough that it does not ride up toward your ears when inflated, while still letting you breathe fully. Fasten the waist and cummerbund first, then adjust the shoulder straps so the tank sits close to your back and the shoulders cannot slide off. With the BCD fully inflated at the surface you should still be able to take a deep, comfortable breath; if it squeezes your chest, loosen it or move up a size.

Rinse the outside in fresh water and also flush the inside of the bladder, because salt water gets in through the inflator and dump valves. Fill the bladder roughly a third full of fresh water through the oral inflator, slosh it around, then drain it out through the inflator and each dump valve. Hang it to dry out of direct sunlight and store it partially inflated so the bladder walls do not stick together.

Integrated weight pockets carry the lead in the BCD itself, which many divers find more comfortable and easier on the hips, while a weight belt keeps the weight independent of your BCD. Either way, you must be able to release your ditchable weight quickly with one hand, and your buddy should know how your system releases. Non-ditchable trim pockets are useful for balance but should never hold weight you might need to drop.

Make sure the BCD is completely dry inside and out before packing so it does not mildew in transit. Remove all weights, deflate it fully, and fold or roll it around softer items such as a wetsuit to cushion the inflator and valves. Avoid hard creases in the air cell, and unpack and air it out as soon as you arrive.

Follow the service interval in the manufacturer's manual, which is commonly an annual inspection alongside the rest of your life-support gear. Have the inflator, dump valves, and bladder checked any time the inflator sticks, free-flows, feels rough, or the BCD holds air poorly. Between services, confirm that it inflates and deflates properly as part of every pre-dive check.

A jacket-style BCD holds air in panels that wrap around your sides as well as your back, while a back-inflate BCD keeps the entire air cell behind you. Jacket styles tend to feel very stable and upright at the surface, and back-inflate styles keep the chest clear and are often preferred for horizontal trim underwater. Neither is objectively better, so treat it as a fit and preference decision and try both if you can.

Most recreational BCDs use an adjustable cam band sized for common single-cylinder diameters, so standard aluminum and steel tanks generally work. Re-check the band tension after the first wetting, because webbing can relax slightly and let the tank shift. If you dive doubles or unusual cylinder diameters, confirm compatibility with the manufacturer before assuming it will hold.

The wing-only version (SKU 208.1311) is sold separately from the complete SMS75 system (SKU 208.1375.003), which Hollis lists as a separate item. Divers who already own an SMS75 harness, or who are building a custom sidemount rig from individual parts, buy the wing-only version instead of the complete system.

No. Hollis publishes the SMS75 Single Wing - Only in a single configuration, with no size or color variants listed. If you are pairing this wing with an existing SMS75 harness or building a custom rig, confirm fit against your current components, or contact DiveCatalog.com for guidance before ordering.

Yes. The SMS75 wing supports rear-mounted tank configurations in addition to sidemount setups. Its geometry places increased lift toward the hips to promote horizontal diving trim without modification. The same wing works whether you are rigged for sidemount or for rear-mounted tanks.

Hollis lists the SMS50/SMS75 Rail Kit as a related accessory for the SMS75 wing. Hollis lists the SMS50/SMS75 Rail Kit as a related SMS75 accessory; no other accessories are published for this wing-only SKU.