This men's SkyLab Overshirt, originally $120, is available for $40 at Mountain Hardwear. That's $80 off and the lowest price we could find anywhere. Sign up for an Elevated Rewards account to bag free shipping, otherwise shipping adds $6. This is an insulated shirt that is made from a blend of cotton and nylon. Four colors are available. For additional discounts, check out these other insulated shirts the are also discounted. Sales tax is charged in most states.