The Thermarest Fast & Light Snap Kit is a superlight attachment system which allows you to clip Thermarest's range of blankets and comforters onto your matress to make the most comfortable sleep system possible. The pack contains 8 self adhesive snap links which affix to the base of your mattress providing a secure anchor for your top sheet.
The Snap Kit can also be used to join two mats together.
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An excellent way of enabling the Thermarest Down blanket to be used on a range of inflatable mattresses. By using the Fast Light Snap kit on my Neoair Trekker and Prolite 4 both have been adapted to secure my Alpine 35 down blanket without having to use a mattress cover. Care needs to be taken when positioning the self adhesive tabs in the correct place on the mat, since once attached they are very difficult to remove. The enclosed instructions are very clear and should be followed. One further comment - some tabs seem to be either very tight and therefore difficult to undo, or somewhat loose and insecure when matched to those on the blanket. This can be easily rectified by carefully opening or closing the retaining spring clips of the female snap with a small screwdriver until an acceptable tension is attained.
This is a simple but extremely valuable accessory, well worth investing in.
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Securely join two Thermarest mattresses side-by-side.