On this page
- Quick picks
- Why a hood matters
- Hood thickness explained
- How to size a hood
- Best overall: Xcel Drylock 3mm Hood
- Best premium cold-water: O’Neill Psycho Tech 3mm Hood
- Best fast-dry: Rip Curl Flashbomb 3mm Hood
- Best eco / Yulex: Patagonia R3 Yulex 3mm Hood
- Best 2mm shoulder hood: Billabong Furnace 2mm Hood
- Best budget: Hyperflex Access 2.5mm Hood
- Best warm-water: Body Glove Pro 3 2mm Hood
- How to wear a hood with a non-hooded suit
- Comparison table
- How we tested
- Putting it together
A wetsuit hood is the highest-leverage cold-water accessory you can buy. Heat loss from an uncovered head in cold water is disproportionately large compared to the surface area involved, and a properly-fitted 3mm hood makes more session-quality difference than going one thickness step thicker on your suit. We have surfed cold water in Pacific Northwest winters with and without hoods, and the difference is not subtle. This guide covers what to look for, the picks across price tiers, and how the right hood fits.
For the broader cold-water context, our cold-water and Pacific Northwest pillar covers the full system. This article covers the hood specifically.
Key Takeaways
- • A separate 3mm hood is the right starting thickness for water 48 to 58°F.
- • 2mm hoods cover shoulder months; 5mm hoods cover deep cold water and dive use.
- • Fit matters more than thickness. A loose hood flushes; a tight hood causes headaches.
- • If your wetsuit is integrated-hooded, you do not need a separate hood.
Quick picks
| Category | Pick | Price |
|---|---|---|
| Best overall (3mm) | Xcel Drylock 3mm Hood | $40–$55 |
| Best premium cold-water | O’Neill Psycho Tech 3mm Hood | $50–$65 |
| Best fast-dry | Rip Curl Flashbomb 3mm Hood | $45–$60 |
| Best eco / Yulex | Patagonia R3 Yulex 3mm Hood | $79–$99 |
| Best 2mm shoulder hood | Billabong Furnace 2mm Hood | $35–$45 |
| Best budget | Hyperflex Access 2.5mm Hood | $25–$35 |
| Best warm-water (1mm-2mm) | Body Glove Pro 3 2mm Hood | $25–$35 |
Why a hood matters
Three reasons.
Heat loss from the head is real. The often-cited “30 percent of body heat” claim is overstated, but heat loss from an uncovered head in cold water is still substantial. The head and neck contain a lot of blood-supply close to the surface, and the blood traveling through there cools fast. A hood blocks the largest exposure point your wetsuit cannot cover.
The neck is the prime flush zone. Even a hooded wetsuit can flush at the neck if the seal is loose. A separate hood worn under a non-hooded suit collar adds a second layer of flush resistance, and the hood-to-collar overlap meaningfully slows water entry.
Hoods are cheap relative to the suit they protect. A $40 hood added to a $300 wetsuit transforms the suit’s cold-water capability. A wetsuit upgrade from a 4/3 to a 5/4 hooded costs $200 to $300 more. A standalone hood is the highest dollar-for-warmth accessory in cold-water surf gear.
For more on the broader cold-water gear philosophy, see our PNW pillar and thickness guide.
Hood thickness explained
Hoods follow the same thickness logic as wetsuits: thicker is warmer, less flexible, and more buoyant. Common thicknesses:
1 to 1.5mm. Beanie-style sun hoods or thermal layers for tropical and subtropical water. Mostly UV protection rather than thermal.
2 to 2.5mm. The right thickness for water 55 to 62°F. Easy to wear, light enough that it does not feel like a full hood, fine for shoulder-season use.
3mm. The workhorse cold-water thickness. Comfortable in water 48 to 58°F. Most surfers in cold-water regions own a 3mm hood and use it most of the year.
5mm. Cold-water specific. Common for divers (where depth compresses neoprene), open-water swimmers in genuinely cold water, and surfers in 40 to 48°F water. Thicker than necessary for most surfing.
7mm. Specialty thickness for ice-water swimming and serious cold-water diving. Rare in the surfing market.
For the temperature-to-thickness map, the interactive temperature chart lets you drag a slider to your water and see the recommendation.
How to size a hood
Wetsuit hood sizing is largely head-circumference-driven. Measure the circumference of your head at the widest point (just above your ears, around the largest part of the back of the head). Most brands publish a size chart with circumference ranges. Pay attention to:
- Face-opening fit. The opening should sit just above your eyebrows and below your chin without restricting jaw movement. Too tight at the chin and you cannot turn your head; too loose and water enters at every duck-dive.
- Bib length. The bib (the flap that extends below the hood and tucks under your wetsuit collar) should be long enough to overlap with your suit. Too short and you have a gap at the neck.
- Crown fit. The top of the hood should sit smoothly on your head without bunching. Bunching at the crown often means the hood is too large.
A hood that fits should feel snug but not painful. After 15 minutes you should forget you are wearing it. If the hood gives you a tension headache during the first hour, it is too tight; size up.
Best overall: Xcel Drylock 3mm Hood
The Drylock hood matches the construction of Xcel’s flagship wetsuit line: dense thermal lining, sealed seams, and a Glideskin neck seal that resists flushing better than most hoods at this price. We have used it under a 4/3 non-hooded suit for full PNW winters and gotten the cold-water performance of a hooded suit with the flexibility of a separate piece. Pairs well with most surf-suit collars without bunching.
Best premium cold-water: O’Neill Psycho Tech 3mm Hood
Built to match the Psycho Tech line. Firewall thermal lining, fluid-sealed seams, and a slightly more generous crown than the Drylock for surfers with larger or differently-shaped heads. We have worn it on long sessions in 47°F water and stayed warm.
Best fast-dry: Rip Curl Flashbomb 3mm Hood
The Flashbomb hood inherits the Flash Lining advantage of the Flashbomb wetsuit line: dries dramatically faster than competitor hoods. For surfers who do back-to-back sessions or take multi-day cold-water trips, this is the hood that does not greet you cold and damp at dawn.
Best eco / Yulex: Patagonia R3 Yulex 3mm Hood
The only hood we recommend that uses plant-based natural rubber (Yulex) instead of neoprene. Construction quality matches Patagonia’s wetsuit lineup; the warmth performance is competitive with neoprene hoods at the same thickness. The premium is real, the eco story is genuine.
Best 2mm shoulder hood: Billabong Furnace 2mm Hood
For shoulder-month use (water 55 to 62°F), a 2mm hood is the right call. Thinner is more comfortable, lighter, and easier to forget about. The Billabong Furnace 2mm is a solid mid-range pick with thermal lining and a clean neck seal at a reasonable price.
Best budget: Hyperflex Access 2.5mm Hood
For surfers building a cold-water kit on a budget, the Hyperflex Access 2.5mm hood is a credible entry-level pick. Basic neoprene, simple construction, no thermal lining. The trade-offs are real but the hood works in the conditions it is designed for.
Best warm-water: Body Glove Pro 3 2mm Hood
For tropical or subtropical use where the hood is mostly UV and abrasion protection rather than thermal, a thinner 2mm hood is plenty. The Body Glove Pro 3 covers this need well.
How to wear a hood with a non-hooded suit
The neck transition is where the seal succeeds or fails. Two approaches.
Bib under collar. The standard. Pull the hood on, settle the bib smoothly on your shoulders, then pull the wetsuit on over the top. The hood bib sits between your skin and the inside of the wetsuit collar. This gives you two layers of seal at the neck.
Bib over collar (less common). Some surfers prefer to put the wetsuit on first, then pull a hood on with the bib over the outside of the suit collar. This is faster but the seal is worse and water can enter through the gap between the bib and the collar. We recommend bib-under unless you have a specific reason otherwise.
For accessory pairing, the wetsuit gloves guide and wetsuit booties guide cover the rest of the cold-water kit. For care across all your accessories, the wetsuit care and maintenance guide covers the rinse and storage routine that keeps a hood lasting more than one season.
Comparison table
| Model | Thickness | Lining | Price |
|---|---|---|---|
| Xcel Drylock | 3mm | Thermal plush | $40–$55 |
| O’Neill Psycho Tech | 3mm | Firewall | $50–$65 |
| Rip Curl Flashbomb | 3mm | Flash Lining | $45–$60 |
| Patagonia R3 Yulex | 3mm | Yulex thermal | $79–$99 |
| Billabong Furnace | 2mm | Thermal | $35–$45 |
| Hyperflex Access | 2.5mm | Basic jersey | $25–$35 |
| Body Glove Pro 3 | 2mm | Basic jersey | $25–$35 |
How we tested
These hoods have been worn by team members across PNW winters and shoulder seasons. We log session length, water temperature (cross-referenced with NDBC buoys when available), and subjective comfort at 30, 60, and 90 minutes. The hoods we have not personally worn (specifically the Hyperflex Access and Body Glove Pro 3) are picked based on construction-spec review and the published consensus of regulars rather than firsthand sessions; we have flagged that in their reviews.
We bought most of these hoods at retail. None were provided by brands. Our methodology page covers the testing process.
Putting it together
The cleanest hood setup is a 3mm cold-water hood (Xcel Drylock, Psycho Tech, or Flashbomb depending on your preference for warmth vs dry-time vs price) plus a 2mm shoulder hood if you surf year-round and want the lighter option for warmer months. For a complete cold-water accessory kit, pair the hood with 5mm or 7mm boots and 5mm gloves.
For broader cold-water context, see our PNW pillar, best cold-water wetsuits guide, and best surfing wetsuits guide. For the science behind why hoods matter so much in cold water, our how do wetsuits work explainer covers the physics. To find the right thickness for your specific water, the Wetsuit Finder tool takes 60 seconds.
Frequently asked
Do I need a hood, or is a hooded wetsuit enough?
If your primary suit is hooded (integrated), you do not need a separate hood. If your suit is non-hooded and you regularly surf in water below 55°F, a separate 3mm hood is the highest-leverage cold-water accessory you can add. Heat loss from an uncovered head is real, and a hood often makes a bigger session-quality difference than going thicker on the suit.
What thickness hood for what water?
2mm hoods work for shoulder-season exposure (55 to 62°F water). 3mm is the workhorse cold-water thickness, comfortable from 48 to 58°F. 5mm hoods are for genuine winter use below 48°F or for divers at depth where compression reduces effective insulation. Thicker than 5mm is rare for surfing; freedivers and ice-water swimmers sometimes go to 7mm.
How tight should a wetsuit hood feel?
Snug enough that it does not shift when you turn your head, but not so tight that the seal is uncomfortable. The bib (the lower flap) should tuck under your wetsuit collar without bunching. The face opening should sit just above your eyebrows and just below your chin without restricting jaw movement. If you cannot easily swallow or turn your head, the hood is too small.
Why do hoods give me a headache?
Two reasons. First, water pressure pushing through a small gap in the seal can cause a brief ice cream headache when you duck-dive. This usually resolves in two or three minutes. Second, a hood that is too tight can cause pressure headaches that last the whole session. If you have persistent headaches in a properly-sized hood, try a thinner hood or one with a different cut at the temples.
About The WetsuitCenter Team
Our buying guides are written and maintained by staff who actually get cold and wet testing this gear: surfers, divers, and open-water swimmers logging real hours across seasons and water temps.
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