Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15
Defender 15

Defender 15

$ 179.95
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The Defender 15 Hydration Backpack is built for riders who need a dependable, high-performance MTB hydration pack. With a spacious 15-liter capacity and an included 2-liter hydration bladder (3L upgrade available), this pack is designed for all-day adventures on rugged terrain. Whether you’re tackling steep switchbacks, bombing descents, or grinding through long-distance rides, the Defender 15 delivers hydration, comfort, and protection.

Unlike most hydration packs designed for MTB, the Defender 15 features a removable spine protector and a back protective shell, offering extra impact protection when the ride gets sketchy. Its adjustable padded shoulder straps, waist support belt, and custom Send It harness system provide a secure, no-bounce fit, ensuring stability on technical trails.

Designed with multiple storage options, this backpack for MTB, moto, snowmobiling, and whatever else you can throw at it, includes multiple pockets and attachment straps to keep tools, snacks, and layers organized. The magnetic side carry system ensures easy access to essentials while keeping them secure during rough rides. Built for year-round performance, the Defender 15 is ready for muddy trails, dry desert rides, and snowy slopes.

Feature Details
Capacity 15L storage for gear & essentials
Hydration Bladder 2L included (3L upgrade available)
Spine Protection Removable spine protector & back protective shell
Fit System No-bounce harness & waist support belt
Storage & Organization Multiple pockets & attachment straps
Magnetic Side Carry System Keeps essentials secure & accessible
Durability Built for all-weather riding
Warranty Lifetime warranty & satisfaction guarantee

Backed by a lifetime warranty and a 100% customer satisfaction guarantee, the Defender 15 is built to handle whatever the trail throws at you.

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The send it 30oz tumbler with lid shown in front of the send it 30 oz stainless steel vacuum insulated tumbler. The send it tumbler features the iconic send it logo laser etched onto the tumbler.
The send it 30oz tumbler with lid shown secured on the send it 30 oz stainless steel vacuum insulated tumbler. The send it tumbler features the iconic send it logo laser etched onto the tumbler.
Send It 30-oz Vacuum Insulated Tumbler
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Image of the Send It Straw hat for summer shade. The Straw hat features the inconic send it logo on a patch affixed to the front of the hat.
Image of the underside of the Send It Straw hat for summer shade. The Straw hat features the inconic send it logo printed in a repeating pattern on the fabric on the underside of the hat.
Straw Hat
from $ 24.95
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Image of the back of the mens Send It Inbound T-shirt without any decorations.
Inbound T Shirt
$ 29.95
Image of the front of the mens Send It Outlier T-shirt featuring the send it iconic logo printed on the middle of the chest in a smoke grey color on a dark black colored shirt.
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Customer Reviews

Based on 4 reviews
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A
Amanda Lavigne
Lots of room and great quality

I’ve used a couple different hydration packs for biking and this one has very high quality straps and material. A few other brands I’ve used ripped quickly or the straps fell apart. Been on about 15 bike rides now and this is holding up great and has so much room for bike tools etc

M
Michael Wussow
Love it!

What not to like? Lightweight, great storage and added protection. It also looks great. A definite step up from the other hydration packs I've used.

J
Jeremy Chambers

Great Product!!! Holds so much! I can carry all needed emergency items, water, and the coolest feature is the way they figured out how to integrate the helmet pouch!

C
Customer
The best hydration pack I’ve ever used!

I’ve used a few camelbacks and other hydration pack brands but the Send It pack is the best one I’ve used for mountain biking by far. My first time using it was during a 5 stage enduro race and it had enough storage for me to pack myself lunch, tools, and held enough water to keep me hydrated all 18 miles of riding. My favorite part about the pack was how well it fit, it didn’t hinder my riding at all and I didn’t feel any bounce even on the harsh roots and rocks through the course. I highly recommend this hydration pack to anyone who does long rides!

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