Fellkit

Montane

Montane Cetus Waterproof Cap (Black)

  • Warmth: 3/10 How warm it keeps your head and ears, from its type and fabric.
  • Wind and rain: 7/10 How well it keeps wind and rain out, from the maker's claims and fabric.
  • Weight: 8/10 How much it adds to your pack.

Lowest price we found

£27.99 at Ultralight Outdoor Gear

In stock. Free delivery. Checked 8 Nov 2026.

RRP £30, checked 19 Oct 2026.

Go to Ultralight Outdoor Gear Compare 4 shops

Keeping rain off your face and glasses on wet walking days

Weight
40 g
Type
Waterproof hat
Weather protection
Windproof or waterproof
Fabric
Shell face and backer 100% recycled nylon; stiffened pre-curved peak, rear bungee adjustment
Membrane
Petrichor 3L laminate, 20,000 mm hydrostatic head, fully seam taped (montane.com)

Where to buy

Ultralight Outdoor Gear £27.99 In stock. Free delivery. Shop's RRP is £29.99. Free tracked UK delivery on all orders.

View at shop: Ultralight Outdoor Gear

Montane £30 In stock. Free delivery. Black, Caper and Neptune Blue. Free UK delivery over £25.

View at shop: Montane

GO Outdoors £30 In stock. Delivery £3.99. Black. Free standard delivery over £80, otherwise £3.99. Member price not included.

View at shop: GO Outdoors

Blacks £30 In stock. Delivery £4.99. Black. Free standard delivery over £95, otherwise £4.99.

View at shop: Blacks

Prices checked 8 Nov 2026 on each shop's own page; shops can change them. We earn no commission on these links; shops are listed by price. More

Our ratings (out of 10)

1 to 10, compared with the whole market. Each says what it's based on. How we score

Warmth

Estimate from maker's specs: hat type and fabric 3/10

How warm it keeps your head and ears, from its type and fabric. 3: Below average. Fine for some trips, not others.

Estimate from maker's specs

Wind and rain

Estimate from maker's specs: maker's wind and water claims 7/10

How well it keeps wind and rain out, from the maker's claims and fabric. 7: Better than most.

Estimate from maker's specs

Weight

Estimate from maker's specs: the maker's weight 8/10

How much it adds to your pack. 8: Clearly better than most.

Estimate from maker's specs

In short

Good for

  • Keeping rain off your face and glasses on wet walking days
  • Under a hood or on its own in showers: 40 g
  • A peak for sun and rain on spring and autumn wild camps

Strengths

  • Fully waterproof 3L laminate, 20,000 mm hydrostatic head, fully seam taped (montane.com)
  • Light at 40 g (montane.com and Ultralight Outdoor Gear)
  • Stiffened, pre-curved peak keeps rain off the face
  • Rear bungee adjustment for a quick fit change
  • Recycled nylon shell face and backer

Weaknesses

  • A peaked cap gives no ear cover or warmth
  • Not insulated: it keeps rain off but gives no warmth
  • One size, adjusted by bungee, so very large heads may find it tight
  • No independent hands-on test found, so durability is untested

Sources

We haven't tested this ourselves. Every score comes from these specs, tests and reviews.

ShowHide sources (3)
  1. montane.com: Cetus Waterproof Cap (weight 40 g, Petrichor 3L laminate 20,000 mm, 100% recycled nylon, price) Specs, 19 Oct 2026
  2. Ultralight Outdoor Gear: Montane Cetus Cap (weighs 40 g, waterproof membrane, price) Specs, 19 Oct 2026
  3. GO Outdoors: Unisex Cetus Waterproof Cap, Black (Petrichor waterproof breathable, adjustable, price) Specs, 19 Oct 2026