Poseidon Waterproof Jacket
3L waterproof MTB shell jacket with fully taped seams
- Hybrid vent pockets increase airflow
- Oversized helmet-compatible hood
- Laminated waterproof two-way zip
- Rear storage pocket for essentials
Complete your kit
Ride through relentless rain, wind and trail spray when the storm god unleashes his fury.
Ride with Poseidon’s protection
- 3-layer TriDent™ fabric delivers reliable waterproof protection
- Fully taped seams prevent water ingress in heavy conditions
- Hybrid vent pockets regulate airflow during high-output riding
- Helmet-compatible hood provides full coverage without restricting vision
- Rear storage pouch keeps gloves, tools and snacks accessible
Product Details
The Poseidon Jacket is made for demanding trail conditions, combining dependable waterproof protection with practical ventilation for sustained riding in bad weather.
Constructed from our 3-layer TriDent™ fabric with fully taped seams, it delivers impenetrable waterproofing against rain and wind. From relentless downpours to trail spray, the Poseidon Jacket keeps you dry and in command of your ride.
Designed for the demands of mountain biking, the oversized helmet-compatible hood features two-way shock cord adjustment for a secure fit in changing conditions.
Extended cuffs with Velcro adjustment help seal out water and mud, while the laminated waterproof two-way zip provides additional weather protection and adjustable ventilation.
Diagonal hybrid vent pockets cut across the body, also sealed with laminated waterproof zippers. These versatile openings secure your essentials while doubling as large ventilation channels.
A large rear storage pouch keeps gloves, snacks or tools close at hand, while reflective logos improve visibility in low light, making the Poseidon Jacket a true companion for wherever your odyssey takes you.
Features
- 3L TriDent™ fabric with fully taped seams
- Hybrid vent/pockets for airflow and storage
- Oversized helmet-compatible hood
- Extended cuffs with Velcro adjustment
- Two-way shock cord hood adjustment
- Large rear storage pouch
- Laminated waterproof two-way zipper
- Reflective logos
Aftercare
To maintain waterproof performance, apply Grangers Performance Repel Plus evenly to a clean, damp garment after washing.
Use gentle heat such as a hairdryer to activate the treatment and maximise water repellency.
Poseidon Jacket Size Guide
Poseidon Jacket Size Chart
| Size | ½ Chest Width | Body Length |
| S | 19.5" | 27" |
| M | 21" | 28" |
| L | 22.5" | 29" |
| XL | 24" | 30" |
| XXL | 25.5" | 31" |
Sizing Tips
- This style of size chart measures the garment dimensions to provide a more accurate idea of fit compared to your own items of clothing, rather than suggestions based on body size.
- Lay out your own hoodie or jacket flat and measure from pit-to-pit and shoulder-to-hem. Compare the figures to the ½ Chest Width and Body Length sizes.
- Odyssey Activewear clothing dimensions are similar to some global brands. Customers should generally order their usual size.
Fit Features
- Helmet-compatible oversized hood with two-way shock cord adjustment for a secure, dialled fit over your lid
- Extended cuffs with Velcro adjustment — seal out water and mud, lock sleeves in place on the bike
- Elasticated hem section for a close seal against wind and water ingress
- 3L TriDent™ fabric with fully taped seams — waterproof, windproof, and moves with you on technical terrain
- Diagonal hybrid vent pockets double as large ventilation channels and secure storage
- Laminated waterproof two-way zipper for adjustable ventilation and weather protection
- Large rear storage pouch for gloves, snacks, or tools on longer rides
Delivery Information
| Destination | Delivery time | Cost |
| 🇬🇧 UK | 1-2 days |
£5 |
| 🌐 International | 4-7 days |
£15 |
All orders are dispatched within one working day (with the exception of bank holidays). You’ll receive tracking information when your order is posted so you can follow it to your door.
International orders may be subject to local import duties and taxes on arrival. These charges are the responsibility of the recipient and are not included in the order total.
Free 30 Day Returns
We want you to be completely satisfied with your order from Odyssey Activewear. If you're not, have 30 days from the date of delivery to return your order. We’ll even cover the return postage cost. Conditions apply, please see the Returns page for more information.
3L Waterproof Fabric
The Odyssey Activewear® Poseidon Jacket is made from our 3-layer TriDent™ fabric—an armour comprising of a water-repellent shell, bonded membrane, and protective inner backing for maximum waterproofing to weather any epic journey.
Fully Taped Seams
The thousands of tiny holes made from stitching fabric together are the Achilles’ heel of any waterproof jacket—the Trojan horse through which water would otherwise invade. But this vulnerability is fortified with tightly bonded taping along every seam, ensuring the Poseidon Jacket remains impenetrable.
Hybrid Pocket Vents
The two large diagonal openings across the body serve a dual purpose as hybrid pocket vents. Sealed with waterproof laminated zippers, these ports provide secure storage and allow you to summon cooling airflow when the heat rises.
