Funny you asked, went to Rays the other day and got the Sea to Summit...When I got home thought to myself no way snake proof so brought them back the next day for a refund. Got on the phone to a local who was advertising Snakeprotex on eBay and made the deal with the promise I would have them before the weekend.
Sure enough arrived today and coulden't be happier these things are the real deal see there video for proof...Ok at $135 it's an investment but should last years, good luck finding 2nd hand just dont think any around but you never know.