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Description & Size guide

NEW FOR 2017

Make sure your dog remains cool, happy and confident this summer when you’re active by wrapping him or her in the Ruffwear Jet Stream vest. With three layers aimed at keeping your canine friend at a nice temperature, this jacket is sure to prove a favourite this spring/summer when you’re both out running, mountain biking or hiking in the hills.

The Ruffwear Jet Stream vest works by soaking it in water, wringing it out then fastening it onto your dog. He or she will feel instantly cool – and for some time too. That’s because the absorbent middle layer of the jacket stores the water you’ve just added, while the inner directs that coolness directly to your dog.

Meanwhile it’s the job of the outer layer to wick away moisture. A spandex shield on the vest’s back panel will also reflect heat from the sun, ensuring your dog remains comfortable, even during the hottest part of the day. Ruffwear have also prepared the outer layer’s chest and stomach area with Swamp Cooler technology.

Happily your dog won’t feel restricted by the Ruffwear Jet Stream vest since the garment’s open cut and lightweight nature will make him or her forget they’re even wearing anything. The vest, which wraps around the chest and stomach area can also be easily put on and removed via a zipper. Choose from a choice of two striking colours – blue lagoon or salamander orange.

Read more about: Do dog cooling products actually work?

Washing Instructions

  • Secure fasteners
  • Wash in cold water, gentle cycle
  • Use mild detergent
  • Hang dry
  • Do not bleach, iron or dry clean




How To Measure:

Measure your dog's girth, around the widest part of the rib cage.

See Videos for more info.

SIZEDog's Chest (Girth)
XX-Small 33-43cm (13-17")
X-Small 43-56cm (17-22")
Small 56-69cm (22-27")
Medium 69-81cm (27-32")
Large 81-91cm (32-36")
X-Large 91-107cm (36-42")
Delivery & Returns


FREE STANDARD DELIVERY on orders over £49

Delivery is free via Royal Mail Tracked service and will take 3-5 working days* to arrive with you.

BASIC DELIVERY on orders under £25

Delivery is £3.35 via Royal Mail 48 service and will take 3-7 working days* to arrive with you.

STANDARD DELIVERY on orders up to £48.99

Delivery is £4.20 via Royal Mail Tracked 48 service and will take 3-5 working days* to arrive with you.


Delivery is £6.30 via Royal Mail Tracked 24 service and will take 1-3 working days* to arrive with you.

SPECIAL DELIVERY (Guaranteed Next Working Day)

Delivery is £8.99 via Royal Mail Special Delivery. This is a guaranteed next working day service and orders must be placed before 3pm. orders placed on a Friday will be delivered the following Monday. Orders placed after 3pm on Friday will be delivered the following Tuesday. This service may not be available in all location i.e. BFPO or Highlands & Islands.

*Delivery times are estimated from shipment and subject to stock availability. Our cut off time for orders is 3pm. Working Days are Monday to Friday and don't include UK public holidays.


At we operate a fair postage policy and we have no additional charges for deliveries to BFPO addresses or the Highlands & Islands.


Delivery to EU from £10.99 (Royal Mail Tracked And/Or Signed)
Free Delivery to EU on orders over £150

International Delivery (Outside EU):
International Delivery £11.99 (Royal Mail Tracked And/Or Signed)
Free International Delivery on orders over £200


We operate a 60 day returns policy at K9active. Items can be returned within 60 days of the shipment date.

For orders placed in the UK we provide free returns potage for exchange items. UK Only orders requesting a refund you can use our returns label, the cost of which £3.50 (Royal Mail Tracked return service) will be deducted from your refund. Alternatively you can use a courier of your choice.


Delivery for some products mainly Large items and Dog Beds will incur shipping charges in addition to our regular postage rates above. In most cases these products will be sent directly from the manufacturers warehouse on a next day courier. In all cases that there will be additional costs for a product to be shipped you will be advised on the product page and you can see the exact cost for your order in the cart using the shipping estimator.

For information about returns, please click here to view our Returns Policy.

Jet Stream Vest by Ruffwear

Size Guide