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M's Pinnacle Ultra Singlet

nearly weightless, micro-perf breathability, hi-vis seams
Color Aether
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Relaxed fit: Designed to comfortably allow room for layers without bunching or tightness
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Meet our lightest, most technical top: the exceptionally breathable Pinnacle Ultra Singlet features signature folded-back hems for a smooth, chafe-free fit during high-output days and races.

Materials + Specs

91% recycled polyester, 9% spandex

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M's Pinnacle Ultra Singlet
M's Pinnacle Ultra Singlet
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$74
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Customer Reviews

Based on 12 reviews
75%
(9)
8%
(1)
8%
(1)
8%
(1)
0%
(0)
E
Edward Y.
Product Fit:
Runs small
Spot-on
Usual Size: S
Size Purchased: M
Height: 5'4" to 5'6"
Weight: 130-150 lbs

M's Pinnacle Ultra Singlet

J
Jim W.
Product Fit:
Runs small
Runs big
Usual Size: M
Size Purchased: S
Height: 5'7" to 5'9"
Weight: 150-170 lbs
Janji never disappoints me...

Got the rift (orange) Pinnacle Ultra singlet, and man this thing is awesome (of course it is, it's Janji!) Very lightweight and comfortable. After studying the size chart, I went with the small, (I'm 5'8 and 160 pounds.) and it fit very well, so I'm figuring they run a little big, so you might want to size down a little. Now I want the awesome looking white Mirage Team Racer color and I might try medium to compare if I can nab one. Sadly, they are sold out, but I'm on the notify email list! I'll rock either one at the St. George Marathon this fall! So happy to be a Collective member for many years!

r
ryan m.
Product Fit:
Runs small
Spot-on
Usual Size: M
Size Purchased: M
Height: 5'7" to 5'9"
Weight: 170-190 lbs
Janji

I love the product so much. The tank top and tights for males are amazing. My wife also loves the tight and the sports bra.

C
Connor D.
Product Fit:
Runs small
Runs big
Usual Size: M
Size Purchased: M
Height: 5'10" to 6'0"
Weight: 170-190 lbs
Love the shirt

Very light and breathable. Sharp colors and design. Rides a little looser than expected. Maybe consider a size down if you want it to be more form fitting.

M
M.S.
Product Fit:
Runs small
Runs big
Usual Size: L
Size Purchased: L
Height: 6'3" or taller
Weight: 190-210 lbs
The lightest top ever

Great top. It's the lightest top I've ever worn. It might run just a little large, but not by that much.

E
Elijah S.
Product Fit:
Runs small
Runs big
Usual Size: M
Size Purchased: M
Height: 5'10" to 6'0"
Weight: 150-170 lbs
great tank

fits great feels great! worn it during 2 ultras and just a great light weight tank top

A
Adham
Product Fit:
Runs small
Runs big
Usual Size: XL
Size Purchased: XL
Height: 6'3" or taller
Weight: 190-210 lbs
Massively moisture wicking and very lightweight

Wore this to my half marathon race day. You're getting a very light top. Even after 13 miles on a summery day I did not feel soaked in sweat. It was light, breathable, and honestly looks great.

J
Jason L.
Product Fit:
Runs small
Runs big
Usual Size: M
Size Purchased: M
Height: 5'10" to 6'0"
Weight: 150-170 lbs
Vibrant colors and soft fabric

Very light and comfortable fabric. Wicks sweat and drys quickly as you go.

P
Phil A.
Product Fit:
Runs small
Runs big
Usual Size: XL
Size Purchased: XL
Height: 5'7" to 5'9"
Weight: 190-210 lbs
Survives the Sufferfests. Looks Good Doing It.

This isn’t just a singlet. It’s a war flag for the miles ahead.

The Janji Pinnacle Ultra in Flower Trippy tackled Florida heat like it was born in the sun. Sweat? Gone. Fabric? Barely there. Breathes like a whisper, moves like a second skin. And the color? Straight from the fever dream of a dehydrated genius—wild, bright, unapologetically alive.

Mid-run, I swear I saw a talking armadillo nod in approval. Might’ve been the heat. Might’ve been the truth.

Bottom line? This thing’s ready. For whatever weird, gritty beauty the trail throws next.

M
Matthew S.
Product Fit:
Runs small
Runs big
Usual Size: L
Size Purchased: L
Height: 5'10" to 6'0"
Weight: 210-230 lbs
Solid

Solid singlet. Prefer higher neckline.