Are you planning to buy underwater knifes, and are you confused about the options ? You have come to the right page.

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Our Top Picks:

Best Overall: Buy: Promate Underwater Knife READ REVIEW

Best For Sharp Blade: Buy: Cressi Underwater Knife READ REVIEW

Best For Sticking In Tree: Buy: Punada Underwater Knife READ REVIEW

Best For Adjustable Straps: Buy: Boffer Underwater Knife READ REVIEW

Best For Easy Access: Buy: Bahia Dive Supply Underwater Knife READ REVIEW

Best With Leg Strap: Buy: Szco Supplies Underwater Knife READ REVIEW

Best For Perfect Size: Buy: Thresher Dive Supply Underwater Knife READ REVIEW

Best For Branches: Buy: Scubapro Underwater Knife READ REVIEW

Best With Fast Shipping: Buy: Underwater Kinetics Underwater Knife READ REVIEW

Best For Overall Length: Buy: Evo Underwater Knife READ REVIEW

Best For Spearfishing: Buy: Seac Underwater Knife READ REVIEW

Best Overall: Promate Underwater Knife

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The private underwater knife might be a relatively new release, but it's still nothing short of impressive this year, thanks to multiple price cuts and improved features over the past few months. Further, the Promate Underwater Knife is perfect for diving, It is suitable for very high quality and has an awesome design. Make sure this fits by entering your model number. Moreover, the knife works great, comes with a great edge, it has a pointed tip and has a great design. Above all, the private underwater knife is available in 10 vibrant colors: orange/ sharptip, silver/blunt tip, silver/ sharptip etc.,.

Most customers agree that the knife is a nice balance of lower price and good quality. And, they strongly agree that the knife is good for neck knife with light mods including drilling and shortening the handle. And, they also found that the knife was in the sheath, but the locking mechanism was secure and the knife stayed secured in the boat, splashing into the water, and swimming upside down. Consequently, customers were eager to recommend it to friends and would-be buyers.

• This comes with great quality, it is great for a great price and has a lightweight design.
• Taken it out once, but so far it is a great knife for the price.
• This is perfect for combating pirates and it is held securely.
• This is very secure, it goes in easily and has a smooth design.

Best For Sharp Blade: Cressi Underwater Knife

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The Cressi Underwater Knife is suitable and reliable and fits well with your daily purpose. Also, the cressi underwater knives are both very sharp and effective for line cutting. The sheath comes with two, standard issue straps to attach it to your leg. Further, the knife is available with two different blades. Finally, the cressi underwater knife is available in 6 colors: point tip blue, point tip orange, point tip lime etc.,.

Most customers think that the knife is possible, but this knife is not your best option. Further, they also found that the knife is designed to disburse blows and prevent breaking. Moreover, a few also found that the metal on the butt of the knife does not have a point to it, meaning it would likely take several shots to break glass, if you are able to at all. In short, the tone of buyers is very positive and we believe that the knife suits the purpose.

• This does have a quality locking design.
• This works well, but construction of the sheath is kind of cheap.
• This can be bought for good value, It has a drop point tip and has an awesome design.
• This provides for good equipment and it is made worth the money.

Best For Sticking In Tree: Punada Underwater Knife

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If you often find yourself confused about the appropriate and satisfactory knife, Punada Underwater Knife should be your first option for buying. The punada underwater knife comes with many pros, provides great value and it is best for sharp blade. The sharp diving knife can offer you great protection when diving and the stainless steel never rusts and can be used for a long time. The diving knife set includes a black diving knife, a heavy duty plastic sheath for the knife, two leg / arm straps and a nylon material sheath for the knife.

The knife could be served for multiple purpose. Most importantly, the punada underwater knife has double cutting edges including one sharp cutting edge and one serrated edge to make easy cutting.

Almost all customers agree that the knife can be used as tactical knives for digging and detecting, it would be a good choice when snorkeling, hiking, rescuing, camping, etc. Also, they also found that the knife comes with two cases, one for a light strap on the leg, and a hard case for diving. In addition, a few say that the knife and the sheath were in fresh water and it rusted overnight as it dried.

• You can carry the diving knife anywhere you want.
• This measures 8.65 inches and is also good for throwing with practice.
• This is better as a reef fishing knife that securely stows away.
• It measures 8.65 inches plus it is a perfect tool for scuba diving.

Best For Adjustable Straps: Boffer Underwater Knife

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The Boffer line of knifes comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Boffer Underwater Knife you can buy for good value, is very secure and it comes with a sheath for your leg. Most sheaths are made from abs plastic, which stores your knife without blunting it. Moreover, it comes with two sheaths and it is a good knife for snorkeling, shallow scuba and cutting fish line.

Above all, the boffer underwater knife is great for the price, It is extremely sharp and has a great design.

Most buyers agree that the knife can ’t be beat, it’s comparable to a $50 sog fixed blade to be honest. And, they strongly agree that the knife works well without breaking the bank. Moreover, they strongly agree that the nylon case is pretty crap as the knife will stab a nice hole through it with time. Overall, at the price, they believe that they got a steal of a deal with it.

• It can be challenging, at first, to get the knife out of the original holster.
• This is when it out it’s an inexpensive repair.
• It also came with a snap closure sheath to wear on your belt.
• This comes with a locking case and a leather travel type of case.

Best For Easy Access: Bahia Dive Supply Underwater Knife

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The features department is where Bahia dive supply underwater knife truly manages to shine. The Bahia Dive Supply Underwater Knife includes a quick release locking mechanism for easy access when needed and security when not in use. You & your dive buddy will be able to quickly see this knife in an emergency. And, this is really great and it provides great value.

The knife is corrosive to stainless steel. In addition, it includes a heavy duty handle with a slip resistant rubber grip. Finally, the bahia dive supply underwater knife get back quickly and it feels cheap.

Most buyers quickly discovered that the knife comes with every dive knife at this price point. In addition, a few say that the knife is used to tap on your tank or any surrounding metal as a form of communication with your dive partner. Moreover, a few say that the knife is secure and will not fall out unless the release button is pushed however. Overall, many customers have used the bahia dive supply underwater knife for more than a few months without any complaints, and it shows no sign of giving up.

• This can be bought for good value and it is easy to handle.
• This is coated with silicon after each dive.
• This does rust but stays in its holster so it gets the job done.

Best With Leg Strap: Szco Supplies Underwater Knife

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Szco Supplies is known for creating pragmatic and minimalist knifes for people on the go, and its line of Szco Supplies Underwater Knifes definitely falls in line with that reputation. Szco supplies an underwater knife you can buy for good value, It works great and has a smooth design. The bright yellow on the handle and multiple blade functions in the design gives this diving knife a tactical look while being easily spotted in dark underwater environments. And, it works at a low price and it makes for nice quality.

The knife can serve all underwater and aquatic needs for cutting, digging, clearing foliage, sawing, underwater defense, cutting rope, and any other water or outdoor adventures. Also, the knife is used for very good quality and it provides great value. Most importantly, the szco supplies underwaterknife is best for regular edge and it is perfect for corrosion resistance.

Most buyers opine that the knife is used for diving, but rather for surfing and kayak fishing in salt water. Also, a few say that the knife is used mostly to bleed fish, but also to trim braided line. Moreover, they say that the knife is easy to carry and use, but not the highest quality steel. In conclusion, the tone of buyers is very positive and we believe that the knife suits the purpose.

• It is humid, but that is no excuse.
• Dimensions: 9 inches overall with a 4.5-inch blade and a 4.5-inch handle.
• There really isn't much room to complain about a $13 dive knife.
• This can rattle in cases which can spook fish.

Best For Perfect Size: Thresher Dive Supply Underwater Knife

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Not everyone likes to purchase a knife for their daily purpose, but the Thresher Dive Supply Underwater Knife would be an anomoly. Further, the thresher dive supply underwater knife is very lite, It is extremely sharp and has a great design. Whether you’re fishing, snorkeling, or scuba diving, it will feel just as comfortable in your hand at the end of the day as it did the first time you took it out of the sheath. The blade on this diving knife is manufactured from titanium alloy, known for its strength, light - weight feel, and corrosion - resistant properties. Finally, the thresher dive supply underwater knife is available in 3 colors: blue sharp tip, blue blunt tip and yellow blunt tip.

Most buyers quickly discovered that the knife features a quality blade. Further, a few strongly agree that the knife is made of plastic and is sturdy and the 2 rubber straps are longer than most others. And, a few also found that the knife fitted well and was even more stable with gloves. In conclusion, most customers found the knife suited best, and no one questions it.

• This lightweight outstanding knife is strong, sturdy and well - made.
• The knife easily handle any task on a long, choppy offshore day.
• This is good for cleaning or filleting fish, it is far too rigid.
• This locks in well, provides great value and it is sleek.

Best For Branches: Scubapro Underwater Knife

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The Scubapro Underwater Knife is capable of outshining several other knifes featured in this list in overall features for the price point. The scubapro underwater knife can get with decent build quality, works well with a good blade and it is good for rust proof. Make sure this fits by entering your model number. In addition, it is good for very high quality, It is ideal for good blade size and has a lightweight design.

The knife is compact and has a great design. Most importantly, the scubapro underwater knife is good for overall length and it is easy to release.

Most customers agree that the knife offers plenty of gripping area as well as thumb guards to keep the knife from slipping. Further, a few say that the knife comes with which can be used for mounting. Also, they say that the knife is ideal for sawing through heavier ropes and branches. To sum up, buyers found this to be one of the best knifes for daily purposes.

• This includes kiit for mounting a knife onto a bc.
• This comes with straps and the option to attach them to bcd.
• This allows for one-hand release and also comes with straps and screw mounts.
• This knife does come with a mounting kit for attaching it to the BCDS.

Best With Fast Shipping: Underwater Kinetics Underwater Knife

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The best part: Underwater Kinetics Underwater Knife costs comparatively little and it is available to ship in 24 hours. The underwater kinetics underwaterknife is best for sharp blade and it can vouch for sturdy construction. Hollow ground straight and serrated knife edges for all types of cutting. Also, the knife is great for little weight, It fits snug and has a lightweight design.

Most importantly, the underwater kinetics underwater knife is great for fast shipping, It is easy to handle and has a great design.

Almost all buyers found that the knife was of good quality as advertised. Moreover, they also found that the knife is easy to hold onto with gloves. Further, they also found that this is a great knife for people that work underwater or dive often. In short, buyers found this to be one of the best knifes for daily purposes.

• It is easy to get out of the sheath.
• The solid titanium blade and pommel are 100% corrosion resistant and non-magnetic.
• Serrated edge for cutting rope and line.
• It has nice ergonomics and it is easy to clean.

Best For Overall Length: Evo Underwater Knife

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Best part: Evo Underwater Knife costs reasonable and it is available to ship in 24 hours. The evo underwater knife features a serrated top edge, built-in line cutter, and blunt tip for scuba diving and snorkeling. Dive knife grip and guard easily come apart for cleaning and maintenance, simplifying cleaning and preventing rust. The evo stainless steel knife is made of 420 stainless steel.

Finally, the evo underwater knife is best for easy cleaning and it is used for overall length.

• This fits comfortably in gloved or bare hands.
• A blunt edged tip ensures your safety while using this dive knife.
• Lot of satisfied buyers.

Best For Spearfishing: Seac Underwater Knife

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Next on the list, we've got yet another knife that manages to win our hearts. It's the Seac Underwater Knife and it's widely considered as one of the most convenient knifes you can buy. The seac underwater knife also has 2 slots to attach the knife to the belt. Make sure this fits by entering your model number. Moreover, it is recommended to always rinse with fresh water and to dry well with fabric or absorbent paper both the knife and the scabbard separately after each dive, even if the knife was only worn and not used, since the scabbard is not watertight.

The knife has a standard blade of 4. Also, this is supplied with two straps that allow seac rapid to be fastened to the arm or calf. Above all, the seac underwater knife is useful for those disciplines.

• This is rigid and makes it possible to hook the diving knife on both sides.
• Delivers what they promise.