Amazon has the Gildan Men's Woven Boxers 5-Pack (G1117) for $13 with free shipping on $35+ or with Prime. List price: $17. GILDAN Woven Boxers are the ultimate in comfort. Crafted with breathable cotton and moisture wicking technology to keep you cool and dry from day to night. Perfect for lounging or every day wear, these will soon be your new favorite, if they’re not already.

Has excellent Amazon Reviews.

Amazon has the Forever 21 Women's Long-Sleeve Bodysuit (20004696150103, 3 colors) for $10 with free shipping on $35+ or with Prime. List price: $23. It features a square-cut neck and back, long sleeves, and snap-button closures. Perfect for layering or wearing alone.

Has good Amazon Reviews.

Amazon has the Amazon Essentials Men's Closed Bottom Fleece Sweatpants (L and XL, Grey Camo) for $9.90 with free shipping on $35+ or with Prime. List price: $21. Comfortable, easy fit through the hip and thigh with a straight leg. Sits at the waist. Features elasticated waist with internal drawcord, hip pockets, and elastic at cuffs. (Available in Big & Tall).

Has excellent Amazon Reviews.

Amazon has the 3-Pack Calvin Klein Men's Micro Stretch Underwear Trunks (Black) for $18 with free shipping on $35+ or with Prime. List price: $48. Features made of 88% polyester, 12% elastane, has a soft, flexible logo waistband that stays put without too much compression and retains its shape, wear after wear.

Has good Amazon Reviews.

eBay has the Adidas Own The Run Astro Knit Men's Pants (Black) for $21 - 20% off with coupon BESTOFBRANDS (Ends 11/18) = $17 with free shipping.