Most bought
Flags
Single colors, mixed sets, reflective pairs. Built around the 4.2 g Weaselball. Hand-painted in Boulder.
- 42 SKUs
- 3.4–4.8 g range
- Lifetime replacement
The Catalog · Issue 09 · Autumn 2025
Flags that weigh
nothing. Visibility
that doesn't.
The full Weaselballs library — trail flags, race-day bundles, reflective markers, and the small things that finish a 100-miler at 3 a.m. Sorted by weight, because that's how you actually choose gear.
- 4.2gFlag weight
- 1.6kmHeadlamp visibility
- 72hrBoulder ship time
The Collection
The Weaselball, close up.
Four flags our customers carry most. Every one is hand-painted on the same bench in Boulder, weighs less than a sheet of cornflake, and carries a lifetime replacement if you lose it on the long descent.
The Original · Lead with this
Weaselball Reflective Flag
The one that started the catalog in 2017. 4.2 g on a thread-count scale, visible from 1.6 km with a 200-lumen headlamp. Hand-painted, reflective on both faces, grommeted for paracord or safety pin.
- Weight
- 4.2 g
- Visibility
- 1.6 km
- Pack
- Single · 6-pack · 24-pack
- Lead time
- Ships in 72 hr
$9/ flag
Add the 6-Pack
Backed by our Never Lose a Flag lifetime replacement — over 11,400 flags replaced since 2019, more than any competitor.
Crew favorite
Painted Sage 6-Pack
Six flags in the colors that disappear best into high-alpine terrain.
- Weight
- 3.8 g ea.
- Pack
- 6 flags
- Price
- $48
Night legs
Blaze Reflective Pair
Double-sided reflective. Built for the 3 a.m. leg when the course eats itself.
- Weight
- 4.6 g ea.
- Pack
- 2 flags
- Price
- $22
The whole set
Cuyamaca 24-Pack
The pack chosen by 9 of our 11 ambassador pacers. Every color in the catalog.
- Weight
- 3.6–4.6 g
- Pack
- 24 flags
- Price
- $168
Bundles · For crews & clubs
Race-day kits,
pre-staged.
Eleven bundles sorted by distance and crew size — 50K soloist, 100K pacer pair, 100-miler three-leg. Each kit ships in a kraft sleeve with a pre-marked inventory card. Giftable to pacers, runners and the club treasurer.
- Solo 50K Kit — 6 flags, 2 markers, $58
- 100K Pacer Pair — 12 flags, 4 markers, $114 (save 14%)
- 100-Mile Crew Kit — 24 flags, 8 markers, inventory card, $196 (save 18%)
- Club Gift Box — 4 mixed kits + handwritten note, $394
Markers · For race directors
Course markers
that survive a 240.
Our custom course-marking program is in the binder at 38 race directors' offices, including the founders of the Cuyamaca 100K and the Mogollon Monster 240. Bulk reflective flags, blaze tape, and stake lights — kitted, numbered and shipped to your start line.
- Reflective Markers — 8.4 g ea., bulk from $1.40/flag at 500+
- Blaze Tape Reels — 100 m of 50 mm reflective
- Stake Lights — solar, 40 hr runtime, $4.80 ea.
- Custom Course Program — quote in 48 hr, ship in 10 days
By the numbers
The receipts, since you asked.
11,400+
Flags replaced under our Never Lose a Flag lifetime guarantee since 2019.
99.2%
On-time shipping across 84,300 orders fulfilled in 2024.
38%
Lighter than the nearest competitor benchmarked in Q2 2024 — 6.8 g average across the core flag line.
41countries
Shipped to, with 22% of FY24 revenue from international orders.
Before You Add To Cart
A short honest list of questions.
If the answer isn't here, write us — we answer every email, usually within four hours during a Boulder business day.
- How fast will this ship?
- Every order leaves our Boulder workshop within 72 hours. We hit 99.2% on-time shipping across 84,300 orders in 2024. Domestic orders arrive in 2–4 days after ship; international orders take 7–14 days via tracked air.
- Can I order custom markers for my race?
- Yes. Our custom course-marking program is used by 38 race directors including the founders of Cuyamaca 100K and Mogollon Monster 240. Send your course map and counts; we'll quote in 48 hours and ship in 10 days. Open the custom-marking page →
- Do you offer wholesale or pro-deals?
- We work with 2,400+ ultrarunning clubs and ambassadors across 41 countries on rolling volume terms. Email [email protected] with your club name and last year's flag count.
- What if I lose a flag on the long descent?
- Send us a photo of where it was, and we'll send a replacement — for life. We've honored 11,400+ replacements since the program launched in 2019, more than any competitor we know of.
- Do you ship internationally?
- We ship to 41 countries. 22% of FY24 revenue came from international orders, handled via tracked air with carbon-neutral shipping through EcoTranz. Customs duties are paid by the buyer on delivery outside the US.
Still deciding? Read the Field Journal — race reports, RD interviews, and the occasional DNF essay.
Open the Field Journal →