a soft neoprene outershell with four small D rings holds a camelbak-like inner bladder with a twist top on a retainer cord. Basic black w. a polar bear in a round white and red logo - thus the product lineup name - Polar Bear Designs. Simple, yet sublime for kayakers and anyone else who wants the insulation and flexibility of a neoprene hydration pack. Available in 70 & 100 oz sizes.
I've owned both for three seasons - rugged, durable fabric, excellent stitching and fasteners. The hydration tube can go thru any of the four corner ports.
Bladders and bite valves are included.
You might be pleasantly shocked at the price.
Delivery is very prompt.
Because it is recumbent the profile is slim - great under the deck bungees, curving around a backband, or, for that matter, clipped to a backpack. Very easy to set up and use. For kayak use these are superb - neoprene keeps the water chilled, esp. if stored under the skirt. Supple, black, easily cleaned.
What's not to like?
The seller is an outdoorsman in Boise, Idaho. Search the world's largest auction site under "recumbent hydration pack" and start enjoying an easy to use hydration pack that is an excellent value from a small American business.