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Neptune Slip-On

$75
Swellsole Neptune Slip-On - Black/White - Right Side View
Neptune Slip-On facing right on a foot, featuring breathable mesh upper and cushioned white sole for beach comfort.
Top and side view of black Neptune Slip-On men's shoe with breathable mesh upper and cushioned orange insole, facing right.
Neptune Slip-On men's slip-on shoes showing top mesh upper and right shoe side with cushioned sole, beach-inspired comfort.
Neptune Slip-On men's black and white shoe facing left, showing breathable mesh upper and cushioned sole close-up.
Top view of black and white Neptune Slip-On shoes with orange insoles, featuring breathable mesh and comfortable cushioning.
Neptune Slip-On men's black slip-on shoe facing back with cushioned heel and lightweight, breathable upper material.
Swellsole Neptune Slip-On - Black/White - Left Side View
Swellsole Neptune Slip-On - Black/White - Underside View
Neptune Slip-On shoe, right side view showing lightweight breathable upper and memory foam sockliner features.
Size 9
$75

Neptune Slip-On

Men's Comfort Sneakers

4.6
Rated 4.6 out of 5 stars
29
$75

Neptune Slip-On

Men's Comfort Sneakers

4.6
Rated 4.6 out of 5 stars
29
$75
Size 9
Neptune Slip-On
Neptune Slip-On
$75
Free Shipping

Free Shipping

Orders $65+ ship free

Easy Returns

Easy Returns

30 days to return or exchange

Trusted Since 1984

Trusted Since 1984

10,000+ ★★★★★ reviews & decades of comfort

Neptune Slip-On

Fit Information (Based on 29 reviews )

4.6
Rated 4.6 out of 5 stars
Based on 29 reviews
FitRated -0.4 on a scale of minus 2 to 2
WidthRated -0.2 on a scale of minus 2 to 2
ComfortRated 4.6 on a scale of 1 to 5
QualityRated 4.7 on a scale of 1 to 5
StyleRated 4.8 on a scale of 1 to 5
Select A Topic To Learn More
29 reviews
  • Gary P.
    Verified Buyer
    Reviewing
    Neptune Slip-On Black/White / 11
    I recommend this product
    Gender Male
    Did you order your normal size? Normal size
    Rated 5 out of 5 stars
    October 24, 2026
    Great slip on

    I have about five pair of these, a couple colors two pairs. Wore them in Mexico in April for two weeks, very very comfortable, good support,

    Came back and bought a few more pair. My luck when I love a shoe the damn thing is discontinued or changed.

    I have a pair of these Neptune lace, however the slip on I believe is a better shoe and much more comfortable to wear for a long period of time. The seem to run true to size and even with socks still comfortable although I prefer them without socks. Also the wash great, minor marks come out and the fit is the same after washing. Dry fairly quickly, air dried, not in the dryer.

    FitRated 0.0 on a scale of minus 2 to 2
    WidthRated 0.0 on a scale of minus 2 to 2
    ComfortRated 5.0 on a scale of 1 to 5
    QualityRated 5.0 on a scale of 1 to 5
    StyleRated 5.0 on a scale of 1 to 5
    Was this helpful?
  • Heath
    Reviewing
    Neptune Slip-On Black/White / 13
    I recommend this product
    Rated 5 out of 5 stars
    October 12, 2026
    5 Stars

    I've never had a Reef product I didn't love, and I can tell these ate going to be the same. Incredibly light weight, easy to slip on, and comfortable. Always great service, communication, and quick shipping.

    Was this helpful?
  • THOMAS T.
    Verified Buyer
    Reviewing
    Neptune Slip-On Black/White / 8.5
    I recommend this product
    Gender Male
    Did you order your normal size? Normal size
    Rated 5 out of 5 stars
    August 17, 2026
    Neptune Slip-On, King of the Surf!

    Yep, lived up to the hype! Super-lite, super-comfy and super-cool! Reef can be forgiven the hyperbole re this slip-on; it ROCKS!!

    FitRated 0.0 on a scale of minus 2 to 2
    WidthRated 0.0 on a scale of minus 2 to 2
    ComfortRated 5.0 on a scale of 1 to 5
    QualityRated 5.0 on a scale of 1 to 5
    StyleRated 5.0 on a scale of 1 to 5
    Was this helpful?
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Description

No laces. No delay. The SWELLsole Neptune Slip-On brings a zero-fuss fit to your daily rotation with lightweight cushioning, a breathable knit upper, and extremely cushioned insole that adapts with every step. The ultra-responsive EVA midsole keeps rebound locked in, while the collapsible heel makes getting out the door even faster. Travel days, packed schedules, or just staying light on your feet—this slip-on’s ready for all of it.

Features & Benefits

Upper

  • Crush-Back Heel
    The crush-back heel lets you easily slip the shoe on or off, giving you flexible comfort that’s perfect for travel or everyday wear.
  • Lightweight Comfort
    Ultra-light design reduces foot fatigue and keeps you comfortable all day.
  • Breathable Materials
    Breathable design helps promote airflow to keep your feet cool and comfortable.

Footbed

  • Extra Cushion
    Plush, high-impact cushioning absorbs impact with every step, delivering plush comfort and easing pressure on your feet and knees.

Product Details

  • Lightweight and breathable engineered knit upper keeps you cool and collected
  • Slip-on style makes getting in and out seamless
  • Extremely cushioned insole molds to your foot for instant, cushioned support
  • Flexible EVA outsole keeps every step light and responsive, so you stay comfortable on the go

Item: CJ8414

Material & Care
    Textile + Genuine Suede (Animal-Derived)
  • Use a soft, dry cloth to remove loose dirt.
  • Mix a small amount of mild clear soap with warm water.
  • Gently clean the fabric using a soft sponge dipped in the solution.
  • Rinse the sponge with clean water and remove any remaining soap from the material.
  • Allow to air dry in the shade at room temperature.
  • For genuine leather (suede or nubuck), gently brush the surface with a soft-bristled brush to remove dirt and debris, clean nubuck or suede using a nubuck/suede-safe or leather-safe cleaner, following the product’s instructions, brush lightly in one direction to maintain the texture of the material, allow to air dry in the shade at room temperature.

    • Avoid:
  • Soaking or machine washing.
  • Bleach or harsh detergents.
  • Direct heat or prolonged sunlight while drying.
    • *Always test any cleaning method on a small, hidden area before cleaning the entire product.

Shipping & Returns

REEF offers free shipping on all orders over $65. Returns or Exchanges are available within 30 days of your order delivery date. Starting on 11/15, we will offer an extended return or exchange window of 45 days for the holidays. See returns page for more details.

Key Features:

Pair of black slip-on shoes angled right showing mesh upper, cushioned orange insole, and lightweight white sole for all-day comfort

Slip On & Go

Slip-on design makes getting out the door faster, with a clean build that keeps pace wherever you're headed.
Close-up of right-facing slip-on shoe with breathable knit upper and soft-rebound cushioned orange insole for comfort

Light On Your Feet

Breathable knit uppers and a flexible EVA outsole combine for a cushioned, barely-there feel on the move.
Top view of pair of dark slip-on shoes showing breathable knit upper and bright orange cushioned insoles for comfort

All-Day Comfort

Plush memory foam molds to your foot for all-day cushioned support.

Reviews

4.6
Rated 4.6 out of 5 stars
Based on 29 reviews
FitRated -0.4 on a scale of minus 2 to 2
WidthRated -0.2 on a scale of minus 2 to 2
ComfortRated 4.6 on a scale of 1 to 5
QualityRated 4.7 on a scale of 1 to 5
StyleRated 4.8 on a scale of 1 to 5
Select A Topic To Learn More
29 reviews
  • Gary P.
    Verified Buyer
    Reviewing
    Neptune Slip-On Black/White / 11
    I recommend this product
    Gender Male
    Did you order your normal size? Normal size
    Rated 5 out of 5 stars
    October 24, 2026
    Great slip on

    I have about five pair of these, a couple colors two pairs. Wore them in Mexico in April for two weeks, very very comfortable, good support,

    Came back and bought a few more pair. My luck when I love a shoe the damn thing is discontinued or changed.

    I have a pair of these Neptune lace, however the slip on I believe is a better shoe and much more comfortable to wear for a long period of time. The seem to run true to size and even with socks still comfortable although I prefer them without socks. Also the wash great, minor marks come out and the fit is the same after washing. Dry fairly quickly, air dried, not in the dryer.

    FitRated 0.0 on a scale of minus 2 to 2
    WidthRated 0.0 on a scale of minus 2 to 2
    ComfortRated 5.0 on a scale of 1 to 5
    QualityRated 5.0 on a scale of 1 to 5
    StyleRated 5.0 on a scale of 1 to 5
    Was this helpful?
  • Heath
    Reviewing
    Neptune Slip-On Black/White / 13
    I recommend this product
    Rated 5 out of 5 stars
    October 12, 2026
    5 Stars

    I've never had a Reef product I didn't love, and I can tell these ate going to be the same. Incredibly light weight, easy to slip on, and comfortable. Always great service, communication, and quick shipping.

    Was this helpful?
  • THOMAS T.
    Verified Buyer
    Reviewing
    Neptune Slip-On Black/White / 8.5
    I recommend this product
    Gender Male
    Did you order your normal size? Normal size
    Rated 5 out of 5 stars
    August 17, 2026
    Neptune Slip-On, King of the Surf!

    Yep, lived up to the hype! Super-lite, super-comfy and super-cool! Reef can be forgiven the hyperbole re this slip-on; it ROCKS!!

    FitRated 0.0 on a scale of minus 2 to 2
    WidthRated 0.0 on a scale of minus 2 to 2
    ComfortRated 5.0 on a scale of 1 to 5
    QualityRated 5.0 on a scale of 1 to 5
    StyleRated 5.0 on a scale of 1 to 5
    Was this helpful?
Show More