On
Lightweight Running Cap
The On Lightweight Running Cap is a performance running hat made from quick-dry, recycled polyester ripstop fabric with laser-cut side perforations for ventilation. It features a curved rigid brim, an adjustable strap with clip closure, a reflective logo, and a sweatband made from a recycled polyamide blend. Designed for running and daily workouts, it is praised for its exceptionally lightweight, durable construction and secure fit, though the non-foldable brim limits packability.
- Material
- recycled polyester
- Gender
- unisex
- Style
- casual, minimal
- Category
- Apparel & Accessories > Clothing Accessories > Hats
Specifications
Lightweight running cap with recycled polyester ripstop fabric, laser perforations, and adjustable clip closure.
Quick-dry ripstop fabric, laser perforated sides, curved rigid peak, adjustable strap with clip closure, reflective logo.
- Material
- recycled polyester
- Style
- casual, minimal
- Occasion
- workout, casual
- Gender
- unisex
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing Accessories > Hats
Additional Attributes
- Lightweight quick-dry ripstop fabric made from recycled polyester
- Laser perforations on sides for breathability
- Curved rigid peak for sun protection
- Adjustable strap with clip closure for secure fit
- Reflective logo for visibility
- Recycled polyester material
- Quick-dry performance
- Ripstop construction
- Perforated side panels
- Curved brim
- Adjustable back closure
- Reflective detailing
Product Insights
The On Lightweight Running Cap is a durable, tearproof, and moisture-wicking cap that keeps runners dry with its sweat-management and laser-cut ventilation, sheds rain and dries quickly, and withstands years of abuse without looking worn. Its 3.25-inch rigid brim provides broad coverage but cannot be folded and may obstruct peripheral vision, while the adjustable clip closure includes a hidden strap tuck and hair-safe buckle, and the re-engineered fit reduces flutter but lacks a ponytail opening for high hairstyles. Breathability is rated Good versus Ciele's Excellent, but the cap's ripstop fabric and quick-dry construction prioritize longevity and weather protection over packability, offering a tradeoff between durability and flexibility for runners who value a cap that stays new-looking over convenient storage.
Verified claims
- Sweat management
- Buyers report the cap keeps their head dry and prevents sweat from dripping down their face during runs.
- Ventilation
- Laser-cut ventilation holes near the temples provide targeted breathability for evaporation.
- Rain recovery
- On markets the cap for 'searing sunshine and sudden downpours,' and its quick-dry construction is intended to shed moisture from light rain so it dries quickly rather than soaking through.
- Closure
- Adjustable clip closure includes hidden strap tuck and hair-safe buckle.
- Fit
- Re-engineered fit reduces flutter; sweatband works backwards; no ponytail opening.
- Brim
- On's 3.25-inch rigid brim offers more coverage than Ciele, without certified UPF and may limit peripheral vision.
- Breathability
- Laser-cut temple vents are award-winning, but breathability is rated Good vs Ciele's Excellent.
- Durability
- Runners who need trail-hardened resilience favor On's tearproof recycled ripstop over Ciele's softer COOLwick fabric.
- Weight
- Laser-cut perforations remove material rather than adding mesh panels, so the cap avoids the weight penalty of traditional venting and keeps a feather-light feel.
- Tearproof fabric
- Tearproof ripstop fabric shrugs off snags that pill softer caps.
- Longevity
- Users report the cap remains durable over years of use.
- Sweatband & moisture
- The sweatband's 13% elastane helps it keep its shape and stay snug against the forehead rather than stretching out.
- Packability
- Brim is rigid and cannot be folded for storage.
- Coverage
- 3.25-inch brim provides sun/rain coverage but may obstruct peripheral vision on trails.
- Reflective logo placement
- Reflective logo is front-only, with no retroreflective surfaces on sides or rear.
- Recycled content
- 100% recycled polyester body with 87% recycled sweatband; Vision certified.
- Heat management
- Laser-cut vents earn Best Vents; breathability rated Good; polyamide sweatband wicks sweat.
- Ponytail compatibility
- The cap has no dedicated ponytail opening; a low ponytail fits below the cap, while high ponytails and buns are likely obstructed by the cap body.
- Interior seams
- The cap's interior seams are covered with a thin fabric overlay that prevents friction against the scalp, even for shaved heads or hours of wear.
- Closure adjustability
- The current post-and-channel buckle is more secure than the earlier clip, but some users find quick mid-run adjustments require two hands.
- Colorways
- The On Lightweight Cap is offered in just two color options, far fewer than Ciele's frequently changing designs.
Product record
- Title
- Lightweight Running Cap
- Brand
- On
- Price
- 55 CAD
- Availability
- In stock
Buying Guide
1 comparison · 17 sourcesUses
Staying cool and dry on warm runs
Made for road running, track, and other fast activities, this feather-light cap is a fit for runners who want sun coverage without overheating. Reviewers report it stays put, keeps their head dry, and stops sweat from dripping down their face during warm runs. The quick-dry ripstop fabric, side laser perforations, and clip-adjustable strap are designed with that in mind, and one reviewer notes the clasp back avoids pulling on hair like other cap styles.[1,4,7,8]
Coverage for runs in sun or sudden rain
Wear this lightweight On running cap when heading out for runs in hot, sunny conditions. According to the brand, it is equipped for searing sunshine and sudden downpours, so you can keep your head covered whatever the weather. The curved rigid peak offers shade over the eyes.[3,6,8]
Staying covered when the weather turns
On's Lightweight Running Cap is designed for runs where conditions can change, from searing sunshine to sudden downpours. According to the brand, it helps you stay covered whatever the weather.[3,6]
Product comparison
Compared within this brand.
| Lightweight Running Cap: Choose this if you want a very light, quick-drying cap for running and other fast activities: it is made of 100% recycled polyester ripstop with laser-cut ventilation holes near the temples that reviewers praise for breathability, plus an adjustable clip strap that tucks away excess strap and won't pull hair. The sweatband (recycled polyamide, recycled polyester, and elastane) helps keep sweat off your face, and one wearer reports it still looks new after a year of use. Note that the stiff curved brim won't fold up for packing, it comes in one size (in Peach Pink), and some wearers have found the current clasp design less convenient than the earlier easy-clip style.[1,2,4,5,7,8] | All Day Cap: Choose this if you want a classic six-panel, low-profile cap in 100% organic cotton with a rigid, curved brim and subtle embroidered branding. It comes in one size with an adjustable metal sliding strap at the back to fine-tune the fit, plus embroidered ventilation eyelets and an inner sweatband for comfort. At 75 grams in an Off White colorway, it suits everyday wear, though ventilation is through small eyelets rather than open mesh.[9,10,11,12,13] | Lightweight Running Cap: Choose this if you want an ultra-light, sweat-wicking running cap: it weighs about 58 g, uses quick-dry ripstop recycled polyester with laser perforations for ventilation, and its adjustable strap fits head circumferences of roughly 55 to 60 cm. Note the stiff curved brim will not fold up for packing, and its open weave offers lower UV shielding than denser fabrics. One reviewer reports the rear fabric can pucker on smaller heads and prefers the previous, easier clip-style clasp over the current post-and-channel design.[1,5,14,15,16,17] |
Shipping & Returns
- Pickup
- buy
Image Analysis
2 images- 01
Product
A lightweight soft-structured running cap shown at a front-right three-quarter angle. The cap has a curved brim, a smooth crown with a subtle textured fabric, a small dark logo on the front-right panel, and rows of small round perforations on the right side panel.
- Overall shapeFive-panel style cap shown at a front-right three-quarter view with a low-profile rounded crown and a gently curved visor extending forward and left in the image.
1 region
x 0.06 · y 0.36 · w 0.86 · h 0.44 (high) - Brim / visorSingle-layer curved brim with a smooth surface and a slightly thin profile; visible underside shadowing creates a darker arc beneath the front edge.
1 region
x 0.05 · y 0.64 · w 0.62 · h 0.26 (high) - Crown fabric textureCrown and front panel show a fine woven or ripstop-like microtexture visible as a subtle grid and small surface variation across the top panels.
1 region
x 0.18 · y 0.28 · w 0.62 · h 0.28 (medium) - Side perforationsRight side panel contains multiple staggered rows of small round perforations covering the rear half of the side panel; holes appear dark against the cap color.
1 region
x 0.71 · y 0.43 · w 0.21 · h 0.29 (high) - Printed logoSmall dark stylized 'on' logo printed on the front-right panel slightly above the seam that meets the brim.
1 region
x 0.52 · y 0.52 · w 0.12 · h 0.12 (high)
Other
Studio product shot on a uniform light gray background with soft diffuse lighting and a cast shadow to the lower right of the cap.
- Background and lightingNeutral light gray seamless background with even diffuse lighting and no visible props.
- Cast shadowSoft shadow appears below and to the right of the cap, grounding it against the background and emphasizing the brim curvature.
1 region
x 0.40 · y 0.74 · w 0.45 · h 0.18 (medium) - Shot compositionCap is centered horizontally in the lower two-thirds of the frame, photographed from slightly above to show crown and brim profile.
Colors
pastel coral· cap body (crown and panels)#F5B4A3pastel coral· visor / brim#FBB4A4dark gray· printed logodark hole interior· perforation holes#454545- Overall shapeFive-panel style cap shown at a front-right three-quarter view with a low-profile rounded crown and a gently curved visor extending forward and left in the image.
- 02
Product
Rear three-quarter view of a lightweight running cap showing the back opening, adjustable strap and perforated side panel; fabric is a warm light peach color with a smooth woven texture and a curved visor visible at right.
- Overall shapeFive-panel style cap silhouette shown from rear three-quarter angle with a gently rounded crown and a slightly curved visor extending to the right.
1 region
x 0.08 · y 0.32 · w 0.84 · h 0.46 (high) - Fabric textureLight woven fabric with a subtle grid-like weave visible across the crown and visor, giving a smooth matte appearance.
1 region
x 0.12 · y 0.34 · w 0.55 · h 0.38 (high) - Perforated side panelRegular grid of small circular ventilation holes covering the right side panel, arranged in horizontal rows that taper toward the visor edge.
1 region
x 0.55 · y 0.44 · w 0.36 · h 0.31 (high) - Back openingRear cutout opening above the strap with visible internal seam stitching and a narrow hem around the edge.
1 region
x 0.08 · y 0.60 · w 0.28 · h 0.20 (high) - Adjustable strapBlack woven strap threaded through the buckle and exiting to the left, appearing flat and slightly textured.
1 region
x 0.03 · y 0.66 · w 0.34 · h 0.17 (high) - Buckle detailRectangular black plastic buckle with a visible raised rectangular release area and a small embossed symbol on the left face of the buckle.
1 region
x 0.03 · y 0.70 · w 0.13 · h 0.10 (high) - Visor edgeCurved visor with top fabric matching the crown and a slightly rounded hem along the outer edge; the underside is not clearly visible.
1 region
x 0.67 · y 0.54 · w 0.30 · h 0.20 (high)
Other
Studio product shot on a light gray seamless background with soft shadow below the cap; image shows the cap cropped with room above and to the right.
- Background and surfaceEven light gray seamless background with a soft drop shadow beneath the cap indicating diffuse studio lighting.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Shot compositionThree-quarter rear view composition showing the cap oriented with the visor to the right and the buckle visible at lower-left; ample empty space above the product.
- Shadow and reflectionSoft diffuse shadow under and slightly to the right of the cap consistent with a light source above-left.
1 region
x 0.34 · y 0.65 · w 0.50 · h 0.28 (medium)
Colors
light peach· crown and visor fabric#F5B4A3dark gray through perforations· perforation interior (visible through holes)#5B5B5Bblack· adjustable strap#0E0E0Bdark charcoal· buckle#3C3C3B- Overall shapeFive-panel style cap silhouette shown from rear three-quarter angle with a gently rounded crown and a slightly curved visor extending to the right.
Brand PDP Lookup
- Brand
- On
Lightweight Cap
Documents & Data
Reddit Insights
3 threads · r/runningfashionReddit users consistently praise the On Lightweight Running Cap for its superior lightweight feel and durability, often rating it above Ciele, though noting a stiff brim and recent design tweaks.
The cap receives strong endorsements for comfort, weight, and longevity; drawbacks like the non-foldable brim and a slightly altered fit are minor against overall enthusiasm.
Themes
Use Cases
- Daily running and workouts
Watch Out For
Compared To
vs Ciele
Users consistently find the On Lightweight Running Cap superior to Ciele caps in comfort and durability, though the stiff brim is a drawback compared to foldable options.
Source Threads
Prefers ON lightweight cap over Ciele
I like my ciele but my ON lightweight cap is the GOAT
u/DaijoubuKiramekir/runningfashionView thread →
5 years of use and still going strong
2nd the On running cap. Very light and is the most out of the way hat I’ve owned. Taped seems are a nice touch. 5 years of abuse and it’s still going strong.
u/x_Oathkeeper_xr/runningfashionView thread →
Best cap tried, but with stiff brim
On lightweight cap is the best I've tried But the brim is stiff so it won't fold up, if that matters I like it better than my ciele and after 1 year using it still looks brand new Last blackfriday was half price
u/DaijoubuKiramekir/runningfashionView thread →