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4mm Boots

4mm Boots

Regular price $22.50 USD
Regular price $45.00 USD Sale price $22.50 USD
Sale Coming Soon
Size Chart


Our 4mm Limestone Neoprene Boot is built to endure temperatures between 50 and 60 degrees Fahrenheit. The non-slip split-toe sole adds durability and foot protection to withstand cold sessions running over rocks, or trotting through frigid sand. Constructed using 4-way stretch, 4mm Limestone Neoprene with GBS seams, these boots will keep you warm while maintaining freedom and a good amount of board feel.  The adjustable velcro strap ensures a snug fit to keep water from gathering in the boot.

Sizing follows US Mens shoe sizing and run true to size. If you're in between sizes, we recommend sizing up.  

And as always, hit us up with any questions about sizing (or anything else)!

Warranty:  COLBY + WARRANTY does not apply to clearance items.



Shipping & Returns


We want you to love our products. On this page you will find details about how to return or exchange your purchases made online.


If you wish to return or exchange a product you've purchased from us, for any reason, we will refund the purchase price or exchange those products subject to the following conditions:

  1. Items must be returned within 30 days of purchase with the original receipt or other proof of purchase
  2. The returned items must not be used [Not surfed in], has any sand or residue, or damaged in any way.
  3. If you request a refund, the purchase price (excluding delivery charges for online) will be refunded to you using the original payment method once we have received the returned item back and confirmed that it meets conditions 1 and 2 above.  If a product is returned used or damaged, the product will be sent back to the return address.

We pay for return shipping (to us), as well as shipping all exchanges back to you:)


Please contact us via email or phone:

(805) 702-1818

From there we will send you a prepaid return label via the email we have on the order. When sending the return back, please make sure the suit is rolled up loosely and not awkwardly folded or creased in any way (leaves permanent damage).

Please also do us a favor, and include your name, order number and "return for refund OR exchange for [fill in the size you’d like]" on a note w/in the package - that'll speed things up!

Warranty and Repair

Wetsuit Warranty and Repair Policy

At Colby +, we stand behind the quality of our wetsuits and are committed to providing our customers with the best possible service. As such, we offer a warranty and repair policy for our wetsuits, as outlined below.

Please note:  Warranty does not apply to Clearance Items.

Warranty Policy:

All Colby + wetsuits are covered by a limited warranty against defects in materials and workmanship for a period of 1-year from the date of purchase. This warranty is only applicable to the original purchaser and is non-transferable.

If a defect in materials or workmanship is found within the warranty period, we will repair or replace the wetsuit free of charge. The decision to repair or replace the wetsuit will be at the sole discretion of Colby +. This warranty does not cover normal wear and tear, damage caused by misuse, abuse, or neglect, or damage caused by accidents or environmental factors.

To make a warranty claim, the customer must provide proof of purchase and contact our customer service team ( The customer will be responsible for the cost of shipping the wetsuit to our repair facility. If the warranty claim is approved, we will cover the cost of returning the repaired or replaced wetsuit to the customer.

Repair Policy:

If a customer's Colby + wetsuit is damaged outside of the warranty period or if the damage is not covered by the warranty, we offer a repair service. Our repair team will assess the damage and provide the customer with a quote for the cost of the repair.

The customer will be responsible for the cost of shipping the wetsuit to our repair facility and the cost of the repair. Once the repair is complete, we will cover the cost of returning the wetsuit to the customer.

Please note that not all damage is repairable, and our repair team will make the final decision on whether a repair is possible.

Where Do I Send My Wetsuit?

Please send your suit to:

Colby +
130 Los Aguajes Ave
Santa Barbara, CA 93101
Attn. repairs

What Happens After I Send My Suit In?

If our repair team finds the repairs are under warranty, we’ll quickly repair or replace the suit and send it back ASAP.

For non-warranty repairs, our repair team will assess and reach back out with an update and price quote if necessary.  Once approved, the repair will be completed and the suit returned ASAP.  

Further Questions?

To make a warranty claim or inquire about our repair service, please contact our customer service team at [insert contact information].

We appreciate your business and look forward to providing you with the best possible service.
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Customer Reviews

Based on 7 reviews
Good board feel & comfortable

These boots are really straight forward. The design is simple, they are easy to get on/off, they’re true to size (I’m 10.5 and always get 11 and these fit as expected), they didn’t hurt my feet, gave me a good feel for the board and kept me warm… they ticked all the boxes and were more affordable than other boots I’ve bought. Will buy again.

ryan knight

4mm Boots

Neekowee Clearwater

I like the feel of them but they definitely seem a little thin to be 4mm

John Naimo
Best wettie I have ever owned...

The yamamoto is no joke. Warm and buttery flexible. I now own 3!!! 3/2, 4/3, and 4/3 Hooded.

Clifton White-Kjoss
4/3 Yamamoto hooded

Thanks for making this wetsuit available. The 4/3 hood Yamamoto XLT fits perfect.
I’ve used hooded suits for as long as I can remember and this one has it all. Flexibility warmth and durability. Not an easy combination to put to market. Thanks Colby! And crew!