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Size

Flanges

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

RK3

3L Trail Vest Bag

65g

49,99 €

Floral


Pay in 4 installments with no fees on orders of €70 or more
Pay in 4 installments with no fees on orders of €70 or more
Eligible for Promotion
ROCKET RK7 L

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

Carrying Capacity

3 L.

Weight

Weight

65 gr

Number of pockets

Number of pockets

3

Zip

Zip

No

Distance

Distance

Short

Distance

Distance

Averages

Training

Training

Yes

Competition

Competition

Yes

• 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

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

Interview

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

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: 4.9382715 / 5 based on 81 reviews.

AI-Generated Review Summary

The RK3 vest, designed by our team, is an ultra-lightweight (only 65g) and minimalist accessory with a 3-liter capacity. Ideal for runners seeking extreme lightness, it strikes the perfect balance between minimalism and functionality, making it suitable for daily training, marathons, or demanding ultra-trails.

Summary Topics

  • Lightweight Practicality: 30%
  • Design Aesthetics: 15%

Review topics: [size, bag, color, pockets, material, pattern, quality, price, vest, bottles, blush, flasks, cut, light].

Review Highlights

  • "I love this vest: great value for the price—it's lightweight, practical, and effective."Marjorie R.
  • "Also recommended—the colors and patterns are very light."Muriel B.
  • "Great pattern, super light!"Marine A.

Reviews

Very satisfied

"I'm very happy with my purchase; it matches the description and my expectations perfectly."

Bastien P. (5/5)

Great!

"Great vest—you don't feel it at all while running. The pockets are well-designed, with just the right amount of storage for my runs (15 km). The adjustable straps are handy, and the floral print is a nice change from the black you see everywhere!"

Anne M. (5/5)

Bag

"He's perfect."

Christelle Q. (5/5)

A very good baby carrier

"A really good baby carrier. It runs large—I ordered a size 2 but ended up going with a size 1. I'm 170 cm tall and weigh 50 kilos."

Elodie L. (5/5)

Practical and lightweight.

"Perfect for outings when you want to keep your hands free."

Jennifer B. (5/5)

Not disappointed

"This backpack is really lightweight and functional, with its various pockets. I used to have a backpack with a hydration bladder in the back, but it really wasn't suitable for running. With the RK3, I can run with complete peace of mind: no discomfort (the water bottles stay securely in place) and no feeling of heaviness on my shoulders. It fits my body perfectly. I approve and highly recommend it 😊👍."

Lydie D. (5/5)

Extra

"Lightweight and easy to use—I recommend it"

Anne B. (5/5)

Favorable

"A very well-designed item—extremely lightweight and practical with the straps. I highly recommend it; plus, the colors and patterns are very subtle."

Muriel B. (5/5)

Gorgeous and incredibly lightweight

"The vest is gorgeous—you completely forget you're wearing it! I haven't quite got the hang of stowing the flasks quickly yet, but I'll get there."

morgann B. (5/5)

Perfect

"The item matches the description. It's comfortable to wear, lightweight, and very pretty."

Sophie G. (5/5)

Q&A

Hello, Can a 2L water bladder fit in the back pocket of the vest?
Hello, Thank you for your question. It is certainly possible to place a water bladder in the pocket on the back. However, I would like to point out that this is not its intended use, and therefore there is no fastening system provided for the tube. Some people sew on a small tab to secure it so it doesn't move. L Kinetik L

RK3 €49.99