FREE SHIPPING & RETURNS ON CONTIGUOUS U.S. $75+ ORDERS

Rocky Worksmart Apparel

View the Collection

Available exclusively on rockyboots.com

Rocky Heavy Weight Thermal Bottom

$18.98

Rocky Heavy Weight Thermal Bottom

  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getAggregateRating, 0ms
  • reviews, product
  • bvseo-msg: Unsuccessful GET. status = 'SERVICE_UNAVAILABLE', msg = 'No callback was configured for service bazaarvoice.http';
$18.98
1
Earn
Reward Points by purchasing this product.
more information

Thermal underwear simply has to be comfortable for you to want to wear it throughout the colder months of the year. With that in mind, Rocky made these thermal bottoms with performance fleece; you'll find this fabric to be amazingly soft and lack of comfort will never be an issue for you. The material has a stretch fit; having this allows you to move around comfortably and they will fit terrifically well.

Given that these thermal bottoms have been made  with a  heavy-weight fabric, your legs will be kept warm when you layer them underneath other apparel -hunting, causal, or work wear - or if you just want to throw them on to wear around the house.

There are two additional factors that will cause this thermal underwear to keep your legs dry and comfortable. Innovative technology allows this fabric to manage moisture effectively, which helps keep your legs dry. Then, you will be pleased to know that these thermal bottoms have been treated with Rocky SIQ Atomic™; it is an intensely powerful scent control that works to mask your scent - perfect for hunting or if you want to wear them underneath your work apparel - and it also assists in controlling perspiration by preventing it from building up on your skin. You'll be dry, comfortable and won't be emitting unpleasant odors at the end of the day.

When you need a great layering base to keep you warm, in addition to offering the most excellent scent control and being utterly comfortable... this Rocky men's thermal bottom is a great choice for you!

Just In Case You'd Like to View More Thermal Underwear Bottoms...

  • Rocky Light-Weight Compression Thermal Bottom (#601875WMT)
  • Rocky Mid-Weight Compression Thermal Bottom (#601885WMT)
  • Rocky Traditional Thermal Bottom (#602235WMT)
      • Rocky Scent IQ Atomic destroys human scent control on the microbial level
      • Stretch fit system moves with you
      • Advanced moisture management technology
      • Performance fleece 2 sided brushed for comfort

    Footwear Size Charts

    Men's / Women's Footwear
    US
    Men's
    2
    3
    3.5
    4
    4.5
    5
    5.5
    6
    6.5
    7
    7.5
    8
    8.5
    9
    9.5
    10
    10.5
    11
    11.5
    12
    12.5
    13
    14
    15
    16
    17
    18
    US
    Women's
     
    5
    5.5
    6
    6.5
    7
    7.5
    8
    8.5
    9
    9.5
    10
    10.5
    11
    11.5
    12
    12.5
    13
    13.5
    14
     
     
     
     
     
     
     
    UK
    1
    2
    2.5
    3
    3.5
    4
    4.5
    5
    5.5
    6
    6.5
    7
    7.5
    8
    8.5
    9
    9.5
    10
    10.5
    11
    11.5
    12
    13
    14
    15
    16
    17
    EUR
     
    36
    36.5
    37
    37.5
    38
    38.5
    39
    39.5
    40
    40.5
    41
    41.5
    42
    42.5
    43
    43.5
    44
    44.5
    45
    45.5
    46
    47
    48
     
     
     
    CM
     
    21
    21.5
    22
    22.5
    23
    23.5
    24
    24.5
    25
    25.5
    26
    26.5
    27
    27.5
    28
    28.5
    29
    29.5
    30
    30.5
    31
    32
    33
    34
    35
    36
    Kids' Footwear
    US
    Toddler (9mos-4yrs)
    4
    4.5
    5
    5.5
    6
    6.5
    7
    7.5
    8
    Little Kid (4-7yrs)
    8.5
    9
    9.5
    10
    10.5
    11
    11.5
    12
    12.5
    13
    13.5
    1
    1.5
    2
    2.5
    3
    Big Kid (7-12yrs)
    3.5
    4
    4.5
    5
    5.5
    6
    6.5
    7
    UK
     
    3
    3.5
    4
    4.5
    5
    5.5
    6
    6.5
    7
     
    7.5
    8
    8.5
    9
    9.5
    10
    10.5
    11
    11.5
    12
    12.5
    13
    13.5
    1
    1.5
    2
     
    2.5
    3
    3.5
    4
    4.5
    5
    5.5
    6
    EUR
     
    19
    20
    20
    21
    22
    22
    23
    24
    24
     
    25
    25
    26
    27
    27
    28
    29
    30
    30
    31
    31
    32
    33
    34
    34
    34
     
    35
    36
    36
    37
    37
    38
    38
    39
    CM
     
    11.4
    11.7
    12.1
    12.7
    13
    13.3
    14
    14.3
    14.6
     
    15.2
    15.6
    15.9
    16.5
    16.8
    17.1
    17.8
    18.1
    18.4
    19.1
    19.4
    19.7
    20.3
    20.6
    21
    21.6
     
    21.9
    22.2
    22.9
    23.2
    23.5
    24.1
    24.4
    24.8

    Apparel Size Charts

    Men's Apparel
    Tops
    Size
    S
    M
    L
    XL
    2XL
    3XL
    Neck
    14.5 - 15
    15.5 - 16
    16.5 - 17
    17.5 - 18
    18.5 - 19
    19.5 - 20
     
    Chest
    34 - 37.5
    38 - 41.5
    42 - 44.5
    45 - 48.5
    49 - 52.5
    53 - 58.5
     
    Waist
    27 - 30.5
    31 - 34.5
    35 - 38.5
    39 - 42.5
    43 - 46.5
    47 - 50.5
     
    Sleeve
    33 - 33.5
    34 - 34.5
    35 - 35.5
    36 - 36.5
    37 - 37.5
    38 - 38.5
    Bottoms
    Size
    M
    L
    XL
    2XL
    3XL
     
    Waist
    33 - 36
    37 - 40
    41 - 44
    45 - 48
    49 - 51
     
    Inseam
    32
    32
    32
    33.5
    33.5
     
    Inseam
    (Rain Pants)
    30
    30
    30
    31.5
    31.5
    Women's Apparel
    Size
    S
    M
    L
    XL
    2XL
    3XL
    Fitted
    Size
    4-6
    8-10
    12-14
    16-18
    20-22
    24-28
    Bust
    34 - 35.5
    36 - 37.5
    38 - 40.5
    41 - 43.5
    44 - 46.5
    47 - 49.5
    Hip
    37 - 38.5
    39 - 40.5
    42 - 44.5
    45 - 48.5
    49 - 52.5
    53 - 58.5
    Waist
    27 - 30.5
    31 - 34.5
    35 - 38.5
    39 - 42.5
    43 - 46.5
    47 - 50.5
    Sleeve
    33 - 33.5
    34 - 34.5
    35 - 35.5
    36 - 36.5
    37 - 37.5
    38 - 38.5
    Kids' Apparel
    Size
    M
    L
    XL
    2XL
    Pant
    Size
    6 - 8
    10 - 12
    14 - 16
    18 - 20
    Waist
    20.5 - 23
    23.5 - 25
    25.5 - 28
    28.5 - 31
    Sleeve
    22.5 - 25
    25.5 - 27
    27.5 - 29
    29.5 - 31
    Inseam
    24
    26
    28.5
    31
    Size
    M
    L
    XL
    2XL
    Child
    Height (in)
    47 - 53
    54 - 59
    60 - 65
    66 - 71
    Child
    Weight(lbs)
    46 - 70
    66 - 97
    92 - 122
    118 - 147
     
     
     
     
     
     
     
     
     
     
    Men's Waders
    Footwear
    Size
    8
    9
    10
    11
    12
    13
    Chest
    46
    48
    48
    50
    52
    54
    Outseam
    47.5
    49.5
    49.5
    51.5
    53.5
    54.5
    Inseam
    to ankle
    29
    30
    30
    31
    32
    33
    Inseam
    to sole
    32
    33
    33
    34
    35
    36

    Doesn't Fit?

    If it doesn't fit, return the unwashed and unworn product within 28 days using our FREE RETURNS process for a full refund.

    See Returns Policy or Create A Return

    • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
    • CLOUD, getReviews, 0ms
    • reviews, product
    • bvseo-msg: Unsuccessful GET. status = 'SERVICE_UNAVAILABLE', msg = 'No callback was configured for service bazaarvoice.http'; Unsuccessful GET. status = 'SERVICE_UNAVAILABLE', msg = 'No callback was configured for service bazaarvoice.http';
    • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
    • CLOUD, getContent, 1ms
    • questions, product
    • bvseo-msg: Unsuccessful GET. status = 'SERVICE_UNAVAILABLE', msg = 'No callback was configured for service bazaarvoice.http';