Hengyuanxiang Winter Hot Sale Thermal Underwear Unisex Antibacterial Heating Cashmere Silk Amino Acid Thickened Autumn Top and Bottom

Antibacterial effect significantly exceeds national AAAAAAA grade standards

Provides safe and effective inhibition of harmful bacteria for all-day wear

High-efficiency heat retention by absorbing and converting body moisture into heat energy

Advanced cashmere cold-resistant technology with dense temperature control

Locks warmth effectively against day and night temperature differences

Breathable and moisture-wicking to maintain skin surface warmth circulation

Elasticity allows accommodation of various body shapes

Close-fitting but not tight, ensuring comfort throughout the day

Available in multiple sizes with a detailed men's size chart based on height (cm) and weight (kg)

Size recommendations validated by hundreds of thousands of buyers; personal preference for fit may vary

Dark Heather Gray

Light Heather Gray

Blue Heather Gray

Bright Red

Hidden fine details for a refined look

Round neck design suitable for inner wear without exposure

Material upgrades have been made from 3A to 7A and now to 10A antibacterial grade; transitional period may exist

Due to material upgrades, three types of materials may be shipped randomly

Product received matches the product shown in images