Blog

Thong Starter Kit Contents Unboxed

Discover exactly what's inside the Underdays Thong Starter Kit: three thongs, a storage pouch, and why it's designed for first-timers.

The Tank vs Other Workout Tops: What to Wear

Compare The Tank with classic tees, crop tops, and other active tops. Learn which suits your gym session, layering needs, and comfort priorities.

How to Build a Training Set for the Gym

Learn how to build a practical training set for the gym with tips on choosing a workout top and bottom set that fits your routine.

The Workout Thong: What Makes It Different

Discover what sets the Workout Thong apart from everyday thongs—quick-dry fabric, functional seams, and no-show comfort for the gym.

The Tank & Thong Set: What's in the Box

Find out exactly what comes with The Tank & Thong Set, including the shelf-bra tank, matching thong, and how the pieces work together for all-day comf...

How to Clean and Store The Scuba Pouch

Keep your Scuba Pouch looking fresh and lasting longer with these simple cleaning and storage steps. Learn the best way to care for this super-soft es...

Brief vs Cheeky vs Boyshort: Which Underwear Cut Fits You?

Deciding between a brief, cheeky, or boyshort? Compare coverage, comfort, and style to find the underwear cut that suits your body and daily needs.

Everyday Soft Plunge vs Soft Balcony: Bra Fit Guide

Compare the Everyday Soft Plunge and Soft Balcony bras on fit, coverage, and versatility. Find which TENCEL bra suits your daily routine and activitie...

How to Style The Tank & Thong Set for Layers

Learn practical ways to layer The Tank & Thong Set for everyday comfort, from choosing the right outerwear to avoiding visible lines.

The Headband: A Stylish Way to Manage Sweat

Learn how to wear the Underdays headband to keep sweat at bay during workouts, lounging, or errands—simple, functional, and versatile.

How to Match Underwear to Your Workout Type

Learn how to pick the best underwear for running, yoga, and gym sessions. Focus on breathability, moisture-wicking, and no VPL for comfort.

How to Fix Stretched Bra Straps on TENCEL Bras

Learn how to diagnose and fix stretched bra straps on your TENCEL bras. Our guide covers common causes, simple adjustments, and when it's time for a r...