Diamonds are a womans best friend. Flex technology turns a regular nights rest into something special. Stretch baffles move with your tosses and turns during the night, making the bag more comfortable, but also more thermally efficient. The ergonomic hood, draft tube, and continuous baffling all work to keep you warm. Tuck stitching hides seams from abrasion. An ergonomically shaped foot box lets your feet relax in a natural position while sleeping. Plunge into a Diamond Spring and feel the difference. Move your down to the sides during warm weather, or fluff up the continuous baffles on top of your body when the mercury dips.