Quantum SLS

Product No: 417357


The Quantum SLS dive BCD offers exceptional robustness and stability. The Quantum SLS is based on a classic wrap-around bag design with shoulder straps connected by buckles to the side lobes. SLS ballast system and a single plate backrest suitable for single and double tanks.

Product Information


The Quantum SLS dive BCD offers exceptional robustness and stability. The Quantum SLS Jacket is designed based on a classic wrap-around bag pattern with shoulder straps connected by buckles to the side lobes.
For the Quantum SLS, a new bag has been developed, with a low-profile slit under the armpit, to increase the diver's mobility, but without sacrificing flotation. In addition, the geometry of the shoulder straps was studied at length, with a specific profile for each size (XS to XL), as well as the ideal positioning of the steel D-rings. The connection to the strap coming from the side lobe of the bag is made by means of a tilting buckle, to facilitate the adaptation of the jacket to the diver's body, and the attachment of the strap to the lobe also has a special ergonomic feature: instead of being sewn directly to the bag, it is sewn onto a semi-circular D-ring that practically replicates the possibility of tilting the buckle at the other end to improve the adaptation of the jacket to the diver.

On the right shoulder strap there is a small detail: a 25mm d-ring, positioned so as not to get in the way of the buckle and designed for those who, according to the typical positioning of the high-pressure hose on the left side, wish to attach it with a clip in this position so that, once in a horizontal position, the pressure gauge or console remains clearly visible in front of the chest to make it easier to check information regarding the tank pressure, depth etc. The sternal closure on the shoulder straps is adjustable only on one side in the direction of the corrugator to avoid a tape end creating a hindrance when looking for the exhaust valve knob on the right shoulder. On the male buckle of the sternal closure we can see the new safety whistle. Many small details for great comfort.

The new SLS ballast system has a capacity of 4+4 kg on sizes XS to M, and 6+6 kg on sizes L and XL. Among other features, the specific visual confirmation of the correct positioning of the ballast provides safety when diving.

The Quantum SLS Jacket uses the new single plate backrest, which is suitable for both single and double tank equipment (up to a maximum of 2x12l, using a specific kit consisting of two oversized straps).

Quantum also features the new three-hole hose connector, which increases airflow by 30%. Quantum is already certified according to the new European standard EN1809:2014.
The main features of the Quantum SLS Jacket are:
- Single plate backrest suitable for single and double tanks
- Swivel buckles and d-rings on the side lobes
- SLS ballast system
- Visual confirmation of correct insertion of the storage pouch
- Customisation label on the storage pouch
- Elastic pockets
- Openings on side lobes for inserting hoses
- Trim storage puch
- Optional Jacket attachment kit
- Optional double tank attachment strap suitable for tanks of up to 2 x 12 l".


4.5kg (size L)
170N (size L)
Weight pocket system:
Stainless Steel D-rings:
Heavy-Duty Technopolymer D-rings:
Classic Bladder
Ergo Inflator


  1. Classic Bladder
    Classic Bladder

    Classic BladderAir-cell enveloping diver on the sides and back. High lift capacity and very comfortable position on the surface characterize this bladder design.

  2. Ergo Inflator
    Ergo Inflator

    Ergo InflatorThe standard inflation and deflation control device used in sanctioned training programs. Intuitive use and secure grip.



  • User Manual for Mares Jackets
    Click the icon on the left to download your manual.
    Languages: EN, BG, CN, CS, DA, DE, EL, ES, ET, FI, FR, GA, HR, HU, IT, LT, LV, MT, NL, PL, PT, RO, RU, SK, SL, SV, TR
  • Diving BCD Technical Specifications (2019/2020)
    Click the icon on the left to download the technical specifications.
    Languages: EN


Please follow the instructions contained in the manual. You must read and understand all warnings and instructions in their entirety before using our products. Scuba diving is a hazardous activity, which involves a risk of injury to any and all parts of the body. As with all scuba diving equipment, our products are designed to be used by trained, certified divers only.

Special Disclaimer
This BC is not a life jacket and it is not a rescue device. This BC is not a breathing system. Never inhale the gas contained in the bladder of the BC. Use only the hose provided with the BC. BC inflation hoses from other manufacturers may not work properly with the inflator used on this BC.

Delivery & Returns


Gli acquisti online sul sito mares.com sono abilitati in Italia, Francia e Spagna. Alcuni prodotti del catalogo sono disponibili solo per l’acquisto presso un rivenditore autorizzato Mares.

Le spedizioni dei prodotti in Italia vengono affidate al corriere Bartolini. Le spedizioni dei prodotti in Francia e Spagna vengono affidate al corriere DHL.

I tempi di consegna sono di 3-5 giorni lavorativi.



Se non sei soddisfatto del tuo ordine, puoi fare un reso in modo facile e veloce.

Puoi decidere di rendere gli articoli acquistati su mares.com entro 30 giorni dalla data di consegna. Per rendere gli articoli utilizza la stessa scatola con cui li hai ricevuti, compila e incolla su di essa l’etichetta che trovi qui con i dati per la spedizione. Ricordati di inserire il numero di delivery che trovi nella pagina 1 dei documenti di consegna.


Per lasciarti più libertà, non abbiamo selezionato un corriere con cui dovrai spedire il pacco, ma sarai libero di utilizzare quello che preferisci.

Ricorda che le spese di spedizione sono a tuo carico.


Al momento non siamo in grado di offrire cambi sui nostri prodotti, se desideri una taglia diversa, restituisci il tuo articolo per un rimborso e riacquista la nuova taglia.

Se hai ancora dei dubbi, scrivici una mail all’indirizzo shop@mares.com. Il nostro servizio clienti sarà felice di aiutarti.


Online purchases on mares.com are enabled for Italy, France and Spain. Some products from the catalogue are only available to purchase at an authorised Mares Dealer.

Products shipped in Italy are entrusted to Bartolini couriers. Products shipped in France and Spain are entrusted to DHL couriers.

Delivery times are 3-5 working days.



If you are not satisfied with your order, you can return it quickly and easily.

You can decide to return any products purchased on mares.com within 30 days of delivery. To return items, use the same box they were received in, complete the returns label found here with shipping details and attach it to the box. Remember to insert the delivery number found on page 1 of the delivery documents.


To allow you greater freedom, we have not chosen a courier service with which you need to return the package, you are free to choose your preferred service provider.

Please remember that shipping costs are your responsibility.


At the moment, we cannot offer exchanges on our products. If you would like a different size, please return the article for a refund and purchase a new size. If you still have any doubts, you can write us an email at shop@mares.com, our Customer Service team will be happy to help.