BIFL Directory buy it for life
Kirkland Signature Underwear
Clothing

Kirkland Signature Underwear

by Kirkland Signature

Costco's in-house Kirkland Signature line of men's underwear.

Why it's buy-it-for-life

Named by a redditor as a cheap, comfortable option for hot-weather wear.

What redditors say

Recommended on reddit as recently as July 2025

  1. 2
    r/BuyItForLife comment

    Kirkland from Costco, for something fairly cheap and comfortable.

underwear budget

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