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Size

Flanges

350 ml

500 ml

Pay in 4 installments with no fees on orders of €70 or more

RK3

Name: RK3
Brand: KinetikAdrenalink
SKU: KINEBU-RK3PAI-SLE3
Price: 49.99 EUR
Availability: InStock
Rating: 4.9 (20 reviews)

3L Trail Vest Bag

65g

49,99 €

Ocean Blue

Pay in 4 installments with no fees on orders of €70 or more

Complete your outfit

MAVRIK MEN

54,99 €

AEROK MEN

64,99 €

FULLKROSS

17,99 €

Men's Collections > Paisley

RK3 3-liter hydration vest for trail running

Designed by our team, this ultra-lightweight vest-style bag (only 65 g) will become your go-to companion.
With a 3-liter capacity, it offers the perfect balance between minimalism and functionality. Ideal for runners seeking extreme lightness, it’s suitable for all distances—whether for a daily workout, a marathon, or a demanding ultra-trail race.

Carrying Capacity

3 L.

Weight

65 gr

Number of pockets

Zip

Distance

Short

Distance

Averages

Training

Yes

Competition

Yes

Technical Specifications

• 2 easily accessible side pockets, ideal for storing energy bars, a phone, or keys.

• 1 large back pocket with aL capacity, perfect for carrying a jacket, a hat, or other essential gear.

• 2 front pockets compatible with 250- to 500 ml water bottles for easy hydration on the go.

The bag comes with two 350-ml soft-sided flasks. You can also choose 500-ml flasks as an option, depending on your needs.

Made in the PRC.

Composition and Care

Composition

• Lining: 92% polyester - 8% spandex
• Outer fabric: 100% polyester

Interview

• Hand wash recommended, or wash on the delicate cycle at 30°.

Shipping and Returns

Delivery

Ships within3 to 4 days(with some exceptions)
Free delivery on orders of €100 or more in France / Flat rate of €10 for Europe

Returns

You have14 days from the date you receive your order to return the items to us if they are not suitable.
You are responsible for shipping costs
Exclusions: Customized products and items subject to hygiene restrictions (underwear, hair ties, headbands, flasks, glassware, and socks) cannot be returned or exchanged.

Overall rating: 4.9 / 5 based on 20 reviews.

AI-Generated Review Summary

Summary Topics

Review topics: [].

Review Highlights

Reviews

Very pleasant

"This bag is comfortable to carry and very lightweight. The only downside is that the water pockets are a tight fit in size 1, and it takes several months of use before 500-ml bottles fit easily."

— Frégis (5/5)

Rk3

"Great, good fit. A little tight for someone who wears XXL. The pockets are large and well-placed."

— David T. (5/5)

Top-notch

"Awesome gear for the race!!"

— Antoine C. (5/5)

Great bag

"The perfect bag for rides ranging from 20 to 40 km"

— Caroline D. (5/5)

Very comfortable

"This backpack is very comfortable and fits snugly against the back. It doesn't get in the way. Let's hope the straps hold up over time, but I'm very satisfied."

— Maxime R. (5/5)

Lightweight

"Very lightweight. You don't even feel it when you run. Very practical, with roomy pockets."

— Joaquim h. (5/5)

Top-notch

"I can't do without it on my long runs anymore"

— Santa d. (5/5)

Top-notch

"I love this hydration vest! It's so lightweight that you hardly notice it, even on long runs."

— Anne-Lise B. (5/5)

A true "second-skin" effect,

"It really feels like a second skin, with an incredible design and high-quality fabric! I'm thrilled!"

— Lucie M. (5/5)

This bag is great

"This bag is super light and really cute—everyone asks me where I got it. It's perfect for my trail runs. I love it!!"

— Nathalie G. (5/5)

Q&A

Hello, How do I choose the right size, please? (1, 2, 3, 4) Thank you for your reply: Hello, Thank you for your question. You can refer directly to our size guide by clicking on "What's my size?" You can also check the "Tips" tab located below the description. L Kinetik L