Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11
Bare 5MM Ultrawarmth Boot size 11

Bare 5MM Ultrawarmth Boot size 11

$124.95

Taxes included.

Shipping calculated at checkout.

In stock!
Select The Options Above
More species
Bare 7MM Ultrawarmth Boot Size 9
Bare 7MM Ultrawarmth Boot Size 9
Bare 5MM Ultrawarmth Boot Size 12
Bare 5MM Ultrawarmth Boot Size 12
Shipping & Returns
  • Free shipping on orders over $40
  • Standard delivery within 3–5 business days
  • Easy 30-day returns
  • Return items in original condition for a full refund

Standard delivery within 3–5 business days

Return items in original condition for a full refund
Add to Cart Select The Options Above

The 5mm Ultrawarmth Dive Boots are engineered to provide exceptional thermal protection, comfort, and durability for cold-water scuba diving and other water sports. Featuring advanced Omnired® Infrared Thermal Technology, these premium neoprene dive boots help retain body heat, improve warmth, and enhance comfort throughout every dive.

The inner lining incorporates low-loft Omnired infrared fabric, a technology scientifically proven to reflect body heat back to the wearer and promote faster thermal recovery. This advanced insulation helps maintain warmth without adding unnecessary bulk, making the boots ideal for extended dives in cooler water.

Constructed from high-quality 5mm neoprene, the boots deliver excellent thermal insulation while remaining flexible and comfortable. Stretchable Elastek neoprene around the ankles and upper calves, combined with fused-cut edges, allows the boots to conform naturally to a wide range of leg shapes, providing unrestricted movement and a secure fit.

A heavy-duty zipper with a wide gusset makes the boots easy to put on and remove while helping reduce water circulation inside the boot. Double-glued and blindstitched seams further minimize water entry, improving insulation and overall comfort.

Designed for demanding diving conditions, the rugged non-slip sole provides excellent traction and stability on wet boat decks, rocky shore entries, docks, and other slippery surfaces. Reinforced toe and heel caps increase durability and protect against abrasion, while the integrated fin strap retainer keeps fin straps securely in place throughout the dive.

Each pair is supplied with a reusable mesh storage bag for convenient transport and drying after use.

Key Features:

  • 5mm premium neoprene construction

  • Omnired® infrared thermal lining for enhanced warmth

  • Scientifically designed to help retain body heat

  • Stretch Elastek neoprene around ankles and calves

  • Fused-cut edges for improved flexibility and comfort

  • Heavy-duty non-slip sole for superior traction

  • Durable front zipper with wide gusset for easy entry

  • Reinforced toe and heel protection

  • Integrated fin strap retainer to prevent strap movement

  • Double-glued and blindstitched seams to minimize water entry

  • Includes reusable mesh storage bag

The 5mm Ultrawarmth Dive Boots are an excellent choice for scuba divers seeking reliable thermal insulation, long-lasting durability, and all-day comfort in cold-water diving environments.
  • 5 stars: 4 (50%)
  • 4 stars: 4 (50%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Andrew Vierra
Sizing is different

I normally wear a size 11 shoe when I purchase through On, the Swiss company, but the size 11 boot was too big. These boots are a little narrow for my foot, but they are the correct length. It would seem that water boots are made smaller than normal shoe guides.

N
Nerfball6
Awesome boots! But watch your fin pocket size.

These are awesome boots, but beware of your fin pocket size. The thick soles definitely take up more room. That said, I love the quality and the comfort. I have the 7mm for cold water Lake Michigan and early season diving, and just bought the 5mm for inland summer lake shore diving. I did find the 7mm to be a bit floaty. But if you wear heavier fins, that shouldn’t be an issue. These are a little on the pricey side, but you definitely get what you pay for. I haven’t had cold feet with either boot. I had the 7mm down to about 43°. And the 5mm down to 48. I generally wear a size 12 sneaker, but found the size 11 in these boots fit well. Awesome boots! Watch your fit in pocket size though. I am using these with Mares Avanti Quattro Plus fins in size size XL.

K
Kris Miller
Awesome soles!

My new Scuba boots fit so comfortably, and the soles are the best! I can walk over rocks in the rivers I raft in Oregon!

S
Shawn Boyer
You won't be disappointed

I have purchased another brand of scuba boots and was not happy with the soles being too thin. These scuba volts are perfect and the soles really protect the bottoms of my feet when walking on rocks. They are quite warm and my feet do not get cold in 60 degree water temps. I am a female that wears a size 8 regularly in shoes. The size 6 in these boots is exactly what I needed.

B
Bo
Sizing

Sizes are a size big. I bought a 13 and it's too big. Still wear them though.

D
D. H.
Too Big - Even after ordering a size down!

I am normally a size 13 US, in Dockers, Rockports, Brooks, New Balance. After reading the reviews I thought I would order a size 12 US. This boot is the right width for me, but at least one size too long. Probably two, if I were barfeoot. Currently there is plenty of length for a thick heavy wool sock, and would still slide around. The toe box is plenty wide, sort of bulbous. These also won't fit my fins, which I am not surprised. I knew I would have to change fins when I started looking at a thick soled boot. Unfortunately these will have to go back.

B
BEN74MIN FORDESIGN
Awesome comfort but they size BIG

Quite possibly the best built and most comfortable 5mm boot you’ll find. Unbelievably warm and comfy with very clean design. I’m a true 10.5 but had to order a second pair in 9 to get the right fit. Check the Euro sizes, those are accurate.

J
JRHartley
These boots are great

I use them actually for kayaking and for river clearing/maintenance. Not only do they keep your feet warm, they actually fit so well they keep both sand and mud out from reaching your feet. Very comfortable, great grip when climbing over slippery submerged tree trunks and limbs. The offer your feet a lot of protection. These are much better than your typical water shoes.