@graceruthr thanks for reaching out, although we're sorry it's because we are out of stock in an item you are interested in. Similar to other categories (like bikes, car racks, and even some camping gear), we've seen very high customer demand which is resulting in us selling out quickly. Looking at the men's MSR Lightning Ascent snowshoes specifically, but without knowing which size you are interested in (22, 25, or 30), we expect to have these available again in early-mid February (barring anything unexpected, of course!).
In the meantime, renting snowshoes from your local REI store might be a possibility.