RAYMOND M large

ROBIN B You will have to measure to be sure but my guess would be an 8" spring straps. The foot pocket on these is longer than other fins so your foot goes in further thus requiring a shorter strap. I prefer XS Scuba spring straps but OMS are also good.

MICHAEL H Hard to tell from the info provided. Too many variables. Dunno how your foot fits in the foot pocket and the type of boot you are wearing, regardless of the sizes/measurements. The Slipstream is a great fin. It is strong, good area, nice fluid dynamics and very rigid. Takes strong leg muscles to generate the optimum thrust. That being said, the straps need to be snug to translate the leg power to the fin. Spring straps are great additions (to any fin): too small and they could hurt; too large and they could slip. Of the two options, go with the slightly larger size. If in a real quandry, buy two sizes and send one back. LeisurePro is great. Just don't tell them I said to do this. LOL

BOB T Extra Large

RAYMOND M About 2 pounds each. For a big fin they are very light

BRIAN E I'm not certain on the exact weight but I can tell that they are much lighter than the scuba pro jet fins. This is because of the type of material used for the OMS version. It's much lighter. The jet fins are made of the same rubber as a Goodyear tire. Heavy but some people like that. For me it was a matter of cost. Save your money and get the OMS variation along with the heel springs.

ROBERT E M Not sure the exact weight, but I'm sure they are heavier than composite fins. These fins are old school, very durable and similar to what I believe Navy seals use. I used fins like these for many years. I was a commercial diver. I had a pair of modern fins but they broke. These are probably not the best choose for free diving. They are more for scuba diving. I like them for lobstering because you can maneuver better.

== = Im not sure but I dont notice them feeling any heavier than any others Ive used, I hope that helps you. Kevin.

RICHARD S Presently the Slipstreams are like Henry Ford's Model T...you can have any color you want, as long as it's black.

WILLIAM M The Oms Monoprene Slipstream Fin popular with cave, technical, wreck, and dry suit divers, comes in black, only black.

MARK E Any Color black you want

BRIAN E Black is the only color. This fin is a tactical/military type fin so color choice is not an option.

TODD O I hope not!

JOHN G If you have 7.5 UK feet and 5 mm booties, large should be fine with medium spring straps.

Monica s Large should be ok. Medium spring straps depending on what type of boot you have should be fine.

SEAN S I got what you suggested but the EZ Spring Grip-Tight Fin Straps seem too large. The small is only and inch shorter and I'm not sure if that is short enough. Any other suggestions on springs?

RICHARD S I wear Pinnacle 7mm zippered boots in size 9, and the Large Slipstreams fit fine. I would also recommend buying the EZ Spring Grip-Tight Fin Straps in size Medium.

Monica s Depending on what boot you are wearing. If you have a soft sole/lighter weight boot Large is ok, but if you have a hard sole thick boot, you will most likely be more comfortable in the XL size. Medium springs should do fine.

DERRICK K I wear size 11.5 shoes and I fit into XL. For Spring straps, depending on brand name, I fit the fins with Halcyon large size spring straps.

== = With my drysuit boots size 10 my fins fit fine and appear to give plenty of adjustment. I think the sales staff could help you choose what should work for you.Kevin

LAWRENCE D I have a size 10.5 D foot and wear a size 12 Rock Boot (Drysuit) with a pair of size 'L' slipstream and 'L' strap. Fo ryour size foot, I would recommend the 'XL' slipstream.

ERIN R Large. I wouldnt worry, these fins are worth getting their own booties for the perfect fit...... if none of your others do it. Great if not the best fins for scuba.

BOB T The large shoulsd work fine.

KEVIN K M-L BUY BOTH TRY THEM ON SEND THE ONES THAT DOESNT FIT BACK

LARRY C If you are wearing neoprene booties with a wet suit I think you are a large. If wearing rock boots or something like that you need an extra large. I'm basing this on my own experience with these fins, which are fantastic by the way. I am a 10 1/2 mens and use an extra large for the booties I wear with my wetsuit and a XXL for use with my drysuit rock boots. You might also consider spring straps. You won't regret it. My wife is a new OW diver and thanks me for talking her into spring straps everytime she bends down to put her fins on. Hope this helps.

CLAYTON L I wear a size 10 1/2 whites dry suite boot and have XXL and love them. if you order them big and get spring straps for them you will not have a problem. IF you order them small you will hate them. I ordered a XL first and immediately sold them to my brother. So order big.

JAKE M I would get XXL

BEN S I would guess xtra large for you, i am a size 10 and my boots are the same and i went with large.

JUSTIN M I wear 10.5/11 with 5mil boots and bought an XL. Although I would stay away from these. They are a copy cat of the scubapro jet fins, but missed the mark. They are very hard and rigid fins. They feel as if they are made of hard plastic, with a rubber coating. Makes them a little lighter then the jet fins, but far inferior. Buy some jet fins, they make them to 3xl now. I went out and bought some because I was disappointed with these. But even better then the jet fins are the scubapro nova sea wings. Best buy far.

LAWRENCE D Probably not. Pocket may be too large making the fin waver over the foot. Though they are a very nice set of fins, it is too bad they do not make a smaller size, like M.

Jungho K Wow, I'm really getting mixed responses... Thanks for the responses but some say they fit snug so I should go larger, others say they fit large so size down... Can anyone from Leisurepro provide me with an answer? I wear men's 6 in the 7mm Henderson Aqualock boots. Majority of my diving with the Slipstreams will be with these boots; not drysuit boots... For warm water diving I use 5mm Mares boots with size Small in Scubapro Seawing Nova's... Many Thanks...

TOM M I wear size 91/2 shoes and the medium Slipstreams fit perfectly.

GALEN H "Philip P, I have some advice for you - I like jet fins. They're the benchmark fins today are measured against. The US Navy still use them, many technical divers do as well. This style of fin has been in use for over 40 years because they're extremely tough, functional, and suitable for most situations under and above water. There are several companies that make jet fins, each having their own differences. The Scubapro and US Divers model is mostly unchanged since the original design from forty years ago. The ends have a little flex to them, but not much. They usually come with rubber straps, but can be retrofitted with many different kinds of aftermarket spring straps. They're good fins. Hollis has recently developed their own style of jet fin, the F1. With a modernized streamlined design, spring straps come already installed, which is an added bonus. The fin comes in many sizes to accommodate most peoples' boot choice. I've even used a pair of hiking boots to dive with the XXL size. These are the least stiff of all the jet fins, but just as reliable, rugged, and functional. The OMS Monoprene Slipstream Fins were the first pair of jet fins I owned. I've used them off and on for three years, particularly with wetsuit dives. I like them, but these fins are VERY VERY stiff. They're like attaching two foot long 2x4 boards from the lumber yard to your feet, and kicking with them. Unless you have monster soccer player thighs / legs (which I do), I wouldn't use them. Instead, I propose an alternative - If you have your heart set on jet fins, I suggest looking into the Hollis F1s. They're the best jet fin out there. If you're open to a more revolutionary design in fin technology, take a look at Force Fins. I love them. They look weird, and they take a bit of getting used to, but they're the best fin on the market for wetsuit divers. The the perfect balance of kicking resistance and power, you won't feel the leg strain while flying through the water."

GALEN H Philip P, I have some advice for you - I like jet fins. They're the benchmark fins today are measured against. The US Navy still use them, many technical divers do as well. This style of fin has been in use for over 40 years because they're extremely tough, functional, and suitable for most situations under and above water. There are several companies that make jet fins, each having their own differences. The Scubapro and US Divers model is mostly unchanged since the original design from forty years ago. The ends have a little flex to them, but not much. They usually come with rubber straps, but can be retrofitted with many different kinds of aftermarket spring straps. They're good fins. Hollis has recently developed their own style of jet fin, the F1. With a modernized streamlined design, spring straps come already installed, which is an added bonus. The fin comes in many sizes to accommodate most peoples' boot choice. I've even used a pair of hiking boots to dive with the XXL size. These are the least stiff of all the jet fins, but just as reliable, rugged, and functional. The OMS Monoprene Slipstream Fins were the first pair of jet fins I owned. I've used them off and on for three years, particularly with wetsuit dives. I like them, but these fins are VERY VERY stiff. They're like attaching two foot long 2x4 boards from the lumber yard to your feet, and kicking with them. Unless you have monster soccer player thighs / legs (which I do), I wouldn't use them. Instead, I propose an alternative - If you have your heart set on jet fins, I suggest looking into the Hollis F1s. They're the best jet fin out there. If you're open to a more revolutionary design in fin technology, take a look at Force Fins. I love them. They look weird, and they take a bit of getting used to, but they're the best fin on the market for wetsuit divers. The the perfect balance of kicking resistance and power, you won't feel the leg strain while flying through the water.

SMITTY S I would go with a small to medium size[as far as this chart] but I would go with the spring strap's for a good fit,,, two sizes smaller then what you are use to..

DOROTHY E The slipstream has a large foot pocket. I wear mine with a dry-suit boot. With a wet-suit boot I think the large would be best, and even that may have a little side-to-side movement. Since you can adjust the strap it should be just fine, but if you purchase spring straps you will need a fairly small size of spring strap. Wait until you get the fin to order spring straps - then you can measure to decide on the length of the spring strap.

JERALD T It appears your customer is female. If so, you should inquire as to what type of diving she does or is going to do? The slip stream requires strong leg muscles to avoid leg cramps. If the dive is going to cave/wreck dive then the OMS fin is superior to anyothers I have found, not negative buoyant. There is a small technical flaw in the design. If you over kick the fin, the moment of bend will change from where it it designed to about mid way of the foot pocket. Otherwise, the OMS is a great set of fins. I have done about 200 dives in open water and caves. I recommed them. As far as the size, I would think a medium is OK unless the diver is planning to use rock boots. I also recommend the SS spring heel straps. They are a must. JT

BEN L They seem to fit small/snug, so I'd go for a larger size.

SEIYA F I have XL size fins for seasoft stealth size 9. The boot sole is pretty thick. I use the medium length springs but longer springs could have been more comfortable.

== = i think it is safer to go to a size larger and snug them to tighten

THOR T Pretty much the same as me I'm using XL fins and medium finstrap. That was all that was available when I bought, it works. I've been thinking of replacing my XL with L but haven't found a good reason to do it so far.

MARK E All I can offer is that I have about size 12 shoe. I ordered: SKU: OMSFS Oms Monoprene Slipstream Fins 2X-Large SKU: OMSSS OMS Spring Heel Strap set for Monoprene Fins X-Large These are for My Drysuit Boots (Size 12 I think?) and the combination works great. I would GUESS you would start with size Large Fin and not sure about Spring . . .

BRIAN F Yes, they will fit. The pocket is slightly smaller than scuba pro twin jet, or jet fin.

JAMES E Iuse the same size spring asfin and it has worked fine--also with a 5ml bootie

ERIC R I just need to know your foot size.

TODD F Is the 8 a mens or womens? I wear an 8 boot, but I wear a size 10 womens street shoe. I take the XL fin. If I remember correctly, my XL fins take the L spring.

DENNIS H I would first ask if the boot you have is a wetsuit booty or if you are using a burly rock boot for a drysuit, if its the later I would imagine an large would work but your run of the mill wetsuit booty would have a little play. I would overall go large, better to have a little room then cram in a med. By the way I'm a size 9.5 and have xl which is perfect for my drysuit and still works for my wetsuit booty. The spring straps are great as well

ERIC R Probably, but if you're a strong swimmer, a large might work.

ALLAN S Hi Mike I am also a size 10. I bought the XL's. Been diving since 1970. They are the best fins that I have ever owned.

JOSE R Hello Mike, I bought a pair of these fins size XXL for when I dive in my drysuit. My foot size is about a 9.5 in, but the DUI boots that I use make my foot a little bit longer to about 10 in. I would get the XXL if I was you, because you might need the extra space. Also, I recommend that you get the OMS Spring Heel Straps as they truly complement the fins. In addition, I can say that I am very satisfied with my pair of fins, and they truly work very well underwater with minimal effort. They give you more thrust underwater, with very little resistance. I've had many fins in the past, and these are by far my favorites. Good luck with your purchase, and I hope you enjoy your new pair of fins as I have enjoyed mine. Take care! Jose Ruiz Lake Worth, FL

JEFF A Mike i would get the XL. i use them them with wetsuit booties and drysuit attached boots. they are good fins

MICHAEL M I have xl for my dry suit boots. Probably to big for regular set up

PIOTR K It also depends on the boot you are using. My foot is 9.5 and I got XLs. They work pretty well with my DUI Turbo Sole Boots

LeisurePro S The spring straps for these fins can be found here.

LeisurePro S A pair of the Slipstreams are approx. 5 pounds and a pair of the F1 fins are 6.5 pounds.

LeisurePro S I would recommend an XL fin with a large spring strap.

LeisurePro S I would recommend the 2XL fins.

LeisurePro S 6 Lbs

LeisurePro S I would recommend the Xlarge if you have a show size between 9-12. Large than 12 and I would go with the 2xl. For the spring straps, order one size smaller than the fin size you ordered.

LeisurePro S I would recommend the XL fins with the large springs.

LeisurePro S Yes, I have known people with a size 13 to wear them.

LeisurePro S XL large fin, Large spring strap.

LeisurePro S The fins are 5 lbs.

LeisurePro S 2XL fins and XL straps should work out.

LeisurePro S XL should fit fine.

LeisurePro S I believe the Xl is the right choice.

LeisurePro S XL and Large spring

LeisurePro S XL

LeisurePro S Since you need a boot with the oms fin 2x is recommended. With the gara fin XL is correct.