OS SYSTEMS designs and owns all of the molds used to dip its LongLife Latex Seals™.  LongLife Latex Seals™ are dipped from only the best high modulus natural gum latex rubber to maximize memory and longevity.  The latex rubber is surgical grade, with the addition only of  black dye, a minimum amount of ozone inhibitor and a long life sealant. 

LongLife Latex Seals™ are not hypoallergenic, however, each does undergo a triple leeching process to minimize the protein content.  Protein content is thought to be a contributing factor in some allergic reactions to rubber. 

The minimum thickness specifications for LongLife Latex Seals™ are:  Standard seals - .026"; Commercial seals - .030". 

LongLife Latex Seals™ are used exclusively in the production and the repair of OS SYSTEMS' products and can also be used in the repair and replacement of seals on other companies' drysuits. All our seals come with a 60 day no fault warranty and are best installed using our own PB-300 glue.  

Please consult the SEAL SIZING CHARTS below for the appropriate LongLife Latex Seals™ for your suit. Additional information on Seal Care can be found on the maintenance page.


Neck Seal

 "Bellows" seal with a conical, ringed neck.  The rings provide additional water tight integrity by serving as miniature o-rings against the skin and the taper allows for a more comfortable fit. The bellows portion allows the user more freedom of movement than a traditional tapered seal. The thickness has been worked out to be thick enough to last and thin enough to give a comfortable stretch. Fit 8" diameter drysuit neck opening.

DLS-1 (Neck Seal) - Sizes: XXS, XS/S, M/L, XL/XXL order now
DLSC-1 (Commercial Neck Seal) - Sizes: XXS, XS/S, M/L, XL/XXL order now
SUIT Size  SEAL Size  NECK Circ. 
XXS  XXS  11"-12" 
XS
XS/S 
XS/S 
12"-14"
12"-14" 
M
M/L 
M/L 
14"-16"
14"-16" 
XL
XXL 
XL/XXL
XL/XXL 
16"-19"
16"-19" 


Wrist Seal

The square shoulder bottle shape makes these wrist seals easier to don and gives more freedom of movement. The ringed tube at the sealing area increase comfort and provide extra water tight integrity. These are sold as pairs only. Fit 11¼" circumference drysuit sleeve opening.

DLS-2 (Wrist Seals) (pr.) - Sizes: XS, S/M, L/XL order now
DLSC-2 (Commercial Wrist Seals) (pr.) - XS, S/M, L/XL order now
SUIT Size  SEAL Size  WRIST Circ. 
XXS
XS
XS
XS
4"-5½ "
4"-5½ "
S
S/M
S/M
5½"-6½"
5½"-6½"
L
XL
XXL
L/XL 
L/XL
L/XL
6 5/8+"
6 5/8+"
6 5/8+"


Socks

 Glued to the suit and designed to be worn under a standard neoprene bootie, the sock is roomy enough for an undergarment and foot.


DLS-315 (15" SOCK SEALS) (pr.) - Sizes: XXS, XS, S, M, L, XL, XXL order now
DLS-316 (16" SOCK SEALS) (pr.) - Sizes: XS, S, M, L, XL order now
SUIT Size  SEAL Size  MEN'S SHOE
XXS 
XS
XS
XS
4-5½"
4-5½" 
6-7½
8-9½ 
L 10-11½
XL XL 12-13
XXL XXL 13½-15


Ankle Seals

 Tapered at the sealing area for comfort and extra water tight integrity.  The bottle shape makes the seal easier to don and gives more freedom of movement. These are sold as pairs only.

DLS-415 (15" ANKLE SEALS) (pr.) - Sizes: XS/S, M/L, XL/XXL order now
DLS-416 (16" ANKLE SEALS) (pr.) - Size: S/M/L order now
SUIT Size SEAL Size  Circ. above
ankle bone
XXS
XS
S
XS/S
XS/S
XS/S
up to 7.75"
M
L
M/L
M/L
up to 8.50"
XL
XXL
XL/XXL 
XL/XXL
8.50" +


Ankle Socks

 These aren't to be glued to a suit, but worn just like regular socks under or over an ankle seal to keep the feet warm and dry. Sold by the pair only.

DLS-6 (ANKLE SOCKS) (pr.) - Sizes: XS, S, M, L, XL order now


DV Boots (Not dipped by OS SYSTEMS)

Rubber drysuit diving boots with heavy duty soles. These feature low profile toes that fit easily in fins, reinforcing for wear areas, fin-keeper heels and easy flex ankles.

NOTE: Any available size of DV-BOOTS can be ordered with any new drysuit.  DV-BOOTS can also be retrofitted on any OS drysuit, by the factory, by a drysuit repair center, by the dealer, or even by the diver.  All  DV-BOOTS come trimmed and prepped, and have the preliminary layers of PB-300 already adhered so that the DV-BOOTS are ready to install on the drysuit.  This is as easy as installing latex socks.

DLS-7 - Sizes: Men's whole sizes US 4-14 order now


Drysuit Hood

We ship the drysuit Hood (DLS-8) with the rubber covering the nose and mouth still uncut so that the customer can trim the hood for the best individual equipment fit.

DLS-8 - Sizes: S, M, L order now

Note: See also DU-DHL (Drysuit Hood Liner).


NOTE: All of our seals are available to any dive shop or watersports store, regardless of dealership status. We encourage you to get yours from your local shop, but if it doesn't or won't carry them, you can order direct from the website by clicking the order now icon or go to the price list for a full listing of items available.