FSGLI provides up to a maximum of $100,000 of insurance coverage for spouses, not to exceed the amount of SGLI for the insured member, and $10,000 for dependent children With FSGLI, life insurance for a military spouse is issued in increments of $10,000, at a monthly cost ranging from $.55 to $5.20 per increment.
The sweet spot for most hiking and multisport daypacks is 30 liters (around 1,830 cubic inches). That's enough capacity to hold the Ten Essentials (for the list, see the REI Expert Advice article, the Ten Essentials) plus some extras. Sizes vary by intended use.
DAN: I cannot stress enough the importance of carrying the right amount of water. You should drink at least half a liter of water per mile, and more if you are going uphill or if you are in a very hot area. You should always carry between four and six liters of water with you, unless you are going on a very short hike.